Part 6

"Well, it's the truth! Ma Harper and her no-account husband, Claude, run an outdoor dance pavilion, but their income is derived from other sources too. Black market sales, for instance."

"Sally, your tongue is rattling like a chain!"

"Pop, you know very well the Harpers are trash."

"Nevertheless, don't make statements you can't prove."

Sally's outspoken remarks worried Penny because of their bearing upon Mr. Gandiss' son. "You don't think Jack is mixed up with the Harpers in black market dealings?" she asked.

"Oh, no!" Sally got up from the deck chair. "He goes there to have a good time. And if you ask me, Jack ought to stop being a playboy grasshopper!"

Captain Barker knocked ashes from his pipe and put it deep in his jacket pocket. "The shoe pinches," he told Penny with a wink. "Sally never learned to dance. I hear tell there's a girl who goes to the Harper shindigs that's an expert at jitter-bugging!"

"That has nothing to do with me!" Sally said furiously. "I'm going to bed!"

Captain Barker arose heavily from his chair. "How about the day's passenger receipts?" he asked. "Locked in the cabin safe?"

"Yes, we took in more than two hundred dollars today."

"That makes over five hundred in the safe," the captain said, frowning. "You'll have to take it to the bank first thing in the morning, I don't like to have so much cash aboard."

Going to the cabin they were to share, Sally and Penny undressed and tumbled into the double-deck beds. The gentle motion of the boat and the slap of waves on the _Queen's_ hull quickly lulled them to sleep.

How long Penny slumbered she did not know. But toward morning she awoke in darkness to find Sally shaking her arm.

"What is it?" Penny mumbled drowsily. "Time to get up?"

"Sh!" Sally warned. "Don't make a sound!"

Penny sat up in the bunk. Her friend, she saw, had started to dress.

"I think someone is trying to get aboard!" Sally whispered. "Listen!"

Penny could hear no unusual sound, only the wash of the waves.

"I distinctly heard a boat grate against the _Queen_ only a moment ago," Sally pulled on her slacks and thrust her feet into soft-soled slippers which would make no sound. "I'm going on deck to investigate!"

Penny was out of bed in a flash. "Wait!" she commanded. "I'm going with you!"

Dressing with nervous haste, she tiptoed to the cabin door with Sally. Stealing through the dark corridors to the companionway, they could hear no unusual sound. But midway up the steps, Sally's keen ears heard movement.

"Someone is in the lounge!" she whispered. "It may be Pop but I don't think so! Come on, and we'll see."

CHAPTER 13 _THE STOLEN TROPHY_

Hand in hand the two girls tiptoed to the entranceway of the lounge. Distinctly they could hear someone moving about in the darkness, and the sound came from the direction of a small cabin which the Barkers used as an office room.

"Pop!" Sally called sharply. "Is that you?"

She was answered only by complete silence. Then a plank creaked. The prowler was stealing stealthily toward the girls!

"Pop!" shouted Sally at the top of her lungs, groping to find a light switch.

Before she could illuminate the room, a man brushed past the two girls. Penny seized him by the coat. A sharp object pierced her finger. She was thrust back against the wall so hard that it knocked the breath from her. The man twisted, and jerking his coat free, dashed up the stairs.

"Pop!" Sally called again.

Captain Barker, armed with revolver and flashlight, came out of his cabin. By this time, Sally had found and turned on the light switch.

"A prowler!" she cried. "He ran up on deck."

"Stay below!" ordered the captain. "I'll get him!"

Penny and Sally had no intention of missing any of the excitement. Close at Captain Barker's heels, they darted up the companionway to the deck. To the starboard, the trio heard a slight splash, then the sound of steady dipping oars.

"Someone's getting away in a rowboat!" Sally cried.

Captain Barker ran to the railing. "Halt!" he shouted. "Halt or I'll fire!"

The man, a mere shadow in the mist arising from the river, rowed faster. Captain Barker fired two shots, purposely high. The man ducked down into the boat, and a moment later switched on an outboard motor, which rapidly carried him beyond view.

"Did you see who the fellow was, Sally?" the captain demanded wrathfully.

"No, it was too dark. Do you think he got away with the money in the safe?"

Fearing the worst, the trio descended to an office room adjoining the passenger lounge. A chair had been overturned there, but the door of the safe remained locked.

"You girls must have surprised him before he had time to steal the money," Captain Barker declared in relief. "No harm done, but this is the first time in six years that anyone tried to sneak aboard the _Queen_. We'll have to keep a better watch from now on."

As the girls turned to leave the cabin, Sally saw that Penny was looking at the third finger of her right hand.

"Why, you're hurt!" she cried.

Penny's hand was smeared with blood which came from a tiny pin-prick wound on the finger.

"It's nothing," she insisted.

Sally ran to a cabinet for gauze, iodine and cotton. "How did it happen?" she asked.

"I tried to stop the prowler. As I grabbed his coat, something stuck my finger. It must have been a pin."

The wound was superficial and did not pain Penny. Sally wrapped the finger for her, and then after Captain Barker had said he would remain up for awhile, they returned to bed.

Throughout the night there were no further disturbances. At dawn the girls arose, feeling only a little tired as the result of their night's adventure. They had time for a quick swim in the river before breakfast and disgraced themselves by eating six pancakes each.

"The crew will be coming aboard soon," Sally said, glancing at her watch. "I usually sweep out the lounge and straighten up a bit before we make our first passenger run."

Penny, who had nothing to do until Jack could come to take her back to the island, eagerly offered to help. Armed with brooms and dust rags, the girls went below.

In the doorway, Penny paused, staring at the overhead beam.

"Why, Sally," she commented in astonishment. "What did you do with the lantern trophy? Take it down?"

"No, it's still there."

Alarmed by Penny's question, Sally moved past her, gazing at the beam. Where the brass lantern had hung, there now was only a neatly severed chain.

"Why, it's gone!" she exclaimed in disbelief.

"Wasn't it here last night when we went to bed?"

"Of course."

"Then it was stolen last night!"

Dropping broom and dustpan, Sally brought a chair and inspected the chain. Obviously it had been cut by sharp metal scissors.

"That prowler who came aboard last night must have done it!" she exclaimed angrily. "Oh, what a mean, low trick!"

As the full realization of what the loss would mean came to her, Sally sank down on the chair, a picture of dejection.

"I'm responsible for the trophy, Penny! I'll be expected to produce it before the final race. Oh, what can we do?"

"Why do you suppose the thief took the lantern and nothing else?"

"Someone may have done it for pure spite. But I'm more inclined to think the person came aboard to steal our money in the office safe. The lantern hung here in a conspicuous place and he may have taken it on impulse."

Intending to notify Captain Barker of the loss, the girls started up the companionway. Abruptly, Penny paused, her attention drawn to an object lying on one of the steps. It was a circular badge with a picture and a number on it. No name. Such identifications, she knew, were used by many industrial plants.

"Where did this come from?" she murmured, picking it up.

The face on the badge was unfamiliar to her. The man had dark, bushy hair, sunken eyes and prominent cheekbones.

Sally turned to examine the identification pin. "Why, this badge came from the Gandiss factory!" she exclaimed, and studied the picture intently.

"Did you ever see the man before?"

"I can't place him, Penny. Yet I know I have seen him somewhere."

"The man should be easy to trace from this picture and number. When I caught hold of his clothing last night, I must have pulled off the pin. That was how my finger was pricked."

As the girls examined the pin, they heard a commotion on deck and the sound of voices. Before they could go up the steps to investigate, Jack Gandiss came clattering down to the lounge.

"I came to take you back to the island, Penny," he informed. "Ready?"

Then his gaze fastened upon the beam where the brass lantern had hung.

"Say, what became of the trophy?" he demanded sharply. "You decided to take it down after all?"

"It's gone," Sally said, misery in her voice. "Stolen!"

The two girls waited for the explosion, but strangely, Jack said nothing for a moment.

"You warned me," Sally hastened on. "Oh, it's all my fault. It was conceited and selfish of me to display the trophy here. I deserve everything you're going to say."

Still Jack remained mute, staring at the beam.

"Go on--tell me what you're thinking," Sally challenged miserably.

"It's a tough break," Jack said without rancor.

"This will practically ruin the race," Sally accused herself. "I can't replace the trophy for there's no other like it. An ordinary cup never would seem the same."

"That's so," Jack gloomily agreed. "Well, if it's gone, it's gone, and there's nothing more to be done."

The boy's calm acceptance of the calamity he had predicted, astonished Penny and Sally. Was this the Jack they knew? With a perfect opportunity to say, "I told you so," he had withheld blame.

Sally sank down on the lower step. "How will I face the racing committee?" she murmured. "What will the other contestants say? They'll feel like running me out of town."

"Maybe it won't be necessary to tell," Jack said slowly. "One of us is almost certain to win the race next Friday."

"Yes, that's true, but--"

"If you win, the lantern would be yours for keeps. Should I win, no one would need to know that you hadn't turned it over to me. You could make some excuse at the time of the presentation."

Sally gazed at Jack with a new light in her eyes. "I'm truly sorry for all the hateful things I've said to you in the past," she declared earnestly. "You're a true blue friend."

"Maybe I'm sorry about some of the cracks I made too," he grinned, extending his hand. "Shake?"

Sally sprang up and grasped the hand firmly, but her eyes were misty. She hastened to correct any wrong impression Jack might have gained.

"I'm glad you made the offer you did," she said, "but I never would dream of keeping the truth from the committee. I'll notify them today."

"Why be in such a hurry?" Penny asked. "The race is a week away. In that time we may be able to find the trophy. After all, we have a good clue."

"What clue?" asked Jack.

Penny showed him the pin. As he gazed at the picture on the face of the badge, a strange expression came into his eyes.

"You know the man?" Penny asked instantly.

"He works at our factory. But that's not where I've seen him."

"At the Harpers?" Sally asked.

"Yes," Jack admitted unwillingly. "I don't know his name, but he is a friend of Ma Harper and her husband."

"And of that no-account Joe, the Sweeper?"

"I don't know about that." The questioning had made Jack uncomfortable.

"The man should be arrested!"

"We have no proof, Sally," Penny pointed out. "While we're satisfied in our own minds that the man who took the lantern is the person who lost the badge, we can't be certain."

"The badge may have been dropped by a passenger yesterday," Jack added. "Let me find out this fellow's name first, and a few facts about him."

"I don't believe your friends, the Harpers, will tell you much," Sally said stiffly. "They're the scum of the waterfront. How you can go there--"

Penny, who saw that another storm was brewing, quickly intervened, saying it was time she and Jack started for the island. Sally, taking the hint, allowed the subject to drop.

But as she went on deck to see the pair off in Jack's motorboat, she whispered to Penny:

"See me this afternoon, if you can. I have an idea I don't want Jack to know about. If we work together, we may be able to trace the trophy."

CHAPTER 14 _TRAPPED_

Jack had little to say about the theft as he and Penny returned to the Gandiss home. However, after lunch he offered to go to his father's factory to learn the identity of the employee who had lost the badge aboard the _River Queen_.

"Want to come along?" he invited.

Ordinarily, Penny would have welcomed the opportunity, but remembering that Sally had wished to see her, she regretfully turned down the invitation.

"I'll ride across the river if you don't mind," she said. "I have an errand in town."

By this time Penny was familiar with the daily route of the _River Queen_ and knew where it would dock to pick up and unload passengers. Sally, she felt certain, would be aboard, expecting her.

They crossed the river in the motorboat, making an appointment to meet again at four o'clock. After Jack had gone, Penny set off for the _River Queen's_ dock where a sizable group of passengers awaited the ferry.

Soon the _Queen_ steamed in, her bell signaling a landing. Passengers crowded the railing, eager to be the first off. A crewman stood at the wheel, and Sally was nowhere to be seen.

As the boat brushed the dock, sailors leaped off to make fast to the dock posts. Captain Barker, annoyed because the passengers were pushing, bellowed impatient orders to his men: "All right, start that gangplank forward! Lively! Are you going to sleep over it all day?"

Then, seeing Penny, he raised his hand in friendly greeting.

"Is Sally aboard?" she called to him.

"No, she went up the shore a ways--didn't say where," the captain replied, waving his hand upriver. "Ought to be back here any minute."

Sally, however, did not appear, and the _Queen_ pulled away without her. Penny loitered on the dock for twenty minutes. The sun was hot and with nothing to do, time lay heavy upon her. It lacked a half hour before the _River Queen_ would return, and fully two hours before she was due to meet Jack. For lack of occupation, she walked upriver along the docks.

Buildings were few and far between. There were several fish houses, a boat rental place and the half-deserted amusement park. The beach beyond made easy walking, so Penny kept on. With quickening interest she saw that she was approaching a two-story building which appeared to stand on stilts over the water. Close by was a large, smoothly cemented area with overhead lights.

"That's the Harper place!" Penny recognized it. "With the dance area adjoining."

She moved on along the beach. Drawing closer to the building, she passed a clump of bushes fringing the sand. The leaves stirred slightly though there was no breeze. Penny failed to notice the movement.

But as she passed the bushes, a hand reached out and grasped her ankle.

Startled, Penny uttered a nervous cry.

"Be quiet, you goon!" a familiar voice bade.

It was Sally Barker crouched amid the foliage. Quickly she pulled Penny with her behind the bushes.

"Sally, what are you doing here?" Penny demanded.

"Watching that house. I saw you a long way down the beach."

"Anything doing?"

"A boat is coming in now. That's why I didn't want you to be seen."

A rowboat with an outboard, rapidly approached the Harper pier. Already it was making a wide sweep preparatory to a landing.

"Why, it's that fellow, Joe the Sweeper!" Penny exclaimed, peering out from the hiding place. "Who is steering the boat?"

"Claude Harper," Sally revealed. "Ma Harper's husband."

"Wonder what Joe would be doing here?"

"That's what I'd like to know myself," Sally returned grimly. "Joe isn't as stupid as he's given credit for being. He's crafty and mean, and being mixed up with the Harpers is no recommendation."

While the girls watched, the boat landed. The two men tied up the craft, and removing a burlap sack which apparently was filled with something heavy, carried it into the two-story house.

"I wish we knew what they brought here," Penny said. "Why not try to find out?"

"How?"

"Couldn't we sneak up to the house and peek in one of the windows?"

"We might be caught."

"True, but we'll learn nothing more here."

Debating a moment, the girls emerged from their hiding place. To reach the house they were compelled to cross an open stretch of beach. However, no one was to be seen outside the dwelling and their arrival appeared to attract no notice of anyone inside.

"How about that window at the east side?" Penny suggested.

The one she pointed out was half screened by bushes and at a level which would permit them to peer inside.

"Okay," agreed Sally, "but I'd hate to be caught at this business. The Harpers hate me and they would be mighty unpleasant if they came upon us snooping."

"What a harsh word!" chuckled Penny. "All this comes under the heading of investigation! The only difference is that Mr. Gandiss' detectives are paid and we aren't."

"If I could get the brass lantern back that would be pay enough for me," Sally returned.

Creeping to the window, the girls cautiously peeped into the house. The panes were so dirty it was hard to see inside. But they were able to distinguish three persons sitting at a living room table. Papers were spread out before them, and they were adding figures. There was no sign of the sack which had been carried into the house.

"Who are they?" Penny asked her companion.

"Joe the Sweeper, Ma Harper and her husband. Another woman is coming into the room now. But she's only a stupid houseworker Ma hires by the week."

Sally moved backwards, intending to give Penny her place at the window. Inadvertently, she stepped on a stick which broke in two with a snap. Though the sound was not loud, it apparently was heard by those inside the house.

For immediately Claude Harper shoved back his chair and started toward the window.

"What was that?" the girls heard him mutter. "I thought I heard someone outside."

"Quick! Crouch down or he'll see us!" Penny warned, pulling Sally to the ground.

Claude Harper, a sallow-faced man in dirty leather jacket, appeared at the window. To the alarm of the girls, he thrust up the sash. In plain view, should he peer down over the ledge, they held their breath.

The man, however, gazed toward the boat docks. "I don't see anyone," he reported to his companions. "I was sure I heard something--" he broke off, ending sharply: "And I did too!"

"What is it, Claude?" his wife called.

"Anyone been here this afternoon?" he demanded.

"Nary a soul until you came."

"Take a look at those shoetracks in the sand!"

Hearing the words, Penny and Sally gazed behind them. From the bush on the beach to the wall where they crouched, led a telltale trail.

"I'll go outside and look around!" Harper said to his wife. He slammed down the window.

"We're sunk!" Sally moaned. "We can't run across the beach without being seen, and we're certain to be caught here."

Keeping close to the wall, treading in firm earth which left no visible shoemarks, the girls crept around the building corner. The slamming of a door warned them that Claude Harper already was on their trail.

"Someone's been here by the window!" they heard him shout.

Frantically, the girls looked about for a place to hide. There was no shrubbery nearby, only the waterfront. Penny's desperate gaze fastened upon the rowboat tied up at the pier nearby. In the bottom lay an old canvas sail.

"Quick! The boat!" she whispered to Sally.

"We'll be caught there sure!"

"It's even more certain if we stay here. Come on, it's our only chance."

Choosing the lesser of two evils, they tiptoed across the pier. Though many of the boards were rotten and loose, their shoes fortunately made no sound.

Scrambling down into the boat, the girls jerked the canvas sail over them. Barely had they hidden themselves, than their hearts sank, for they heard heavy footsteps approaching on the pier.

CHAPTER 15 _UNDER THE SAIL_

That Claude Harper was searching for them, the girls did not doubt. But though he knew someone had been peering in the window, they were hopeful he had not actually seen them. Huddling beneath the sail in the bottom of the boat, they nervously waited.

The man came farther out on the pier, the boards creaking beneath his weight. At any instant the girls expected to have the sailcloth jerked from their heads. However, Harper's attention was diverted as Sweeper Joe came out of the house.

"Find anyone?" the factory worker asked.

"No, but tracks lead to the window. Someone's been spying."

"Kids probably."

"I don't know about that," Claude Harper returned gruffly. "I'd feel a lot safer if we didn't have all that stuff in the basement. What's our chances of getting rid of it tonight?"

"We can't do it. Tomorrow or next night maybe. Arrangements have got to be made, and if we try to push things, we'll end up in a jam."

The voices faded away, though not entirely. Presently daring to peep from beneath the canvas, Penny saw that the two men had seated themselves on the rear steps of the house at the edge of the river and within plain view of the tied-up boat.

"We're in a nice position now!" she whispered to Sally. "Suppose they sit there until they decide to leave in this boat?"

"We'll be caught. We're the same as trapped now unless they go back into the house."

The two men showed no inclination to leave. They talked earnestly together, evidently making plans of some sort. Though the girls tried hard to overhear, they could catch only an occasional word. After awhile, Ma Harper, a wiry, ugly woman with stringy black hair, came outdoors to join the men on the steps.

"It's getting late," she warned. "If you're goin' to tend to that job today, you'll have to be gettin' across the river. Ain't you due to show up for work at four o'clock, Joe?"

"That's right," the man yawned, getting up. "I'll be glad when I can chuck the whole business and live without workin'."

Though Penny and Sally did not hear much of the conversation, it was evident to them that the men were about ready to make use of the boat.

"We're sunk," Sally whispered fearfully. "Maybe we ought to climb out of here and make a dash for it."

Penny offered a better idea. "Why not untie the rope, and let the boat drift off?" she proposed. "The current is swift and should carry us downstream fairly fast."

"Any other boat around that they can use to follow us in?"

"I don't see any." Penny raised the sail a little higher as she gazed along the pier and nearby beach.

"All right, then do your stuff," Sally urged.

While she held the sail slightly above Penny's head so that no movement would be discernible to those on the house steps, the latter reached her hands from beneath the cloth and swiftly untied the rope. The boat began to drift away. Covered by the sail, the girls lay motionless and flat on the craft's bottom.

At first nothing happened. But as they began to hope that the men would not notice the drifting boat, they heard an explosive shout.

"Look!" Claude Harper exclaimed. "Our boat!"

"Jumpin' fish hooks!" Sweeper Joe muttered. "How did that happen? I tied 'er secure."

"It looks like it," the other retorted sarcastically. "I can't afford to lose that boat."

The girls could hear running footsteps on the pier and boardwalk near the dance pavilion. Sally dared to peep from beneath the canvas again.

"They're after a motorboat!" she reported tensely. "Harper has one he keeps locked in a boathouse."

"How close are we to the bend in the river?"

"About twenty yards."