The Missing Formula Madge Sterling Series, #1

To her further astonishment, the pilot said a few words to his passenger, a well-dressed, elderly gentleman, who immediately climbed from the front cockpit. He presented his car...

Making certain that she had removed everything from the cache, she gathered up the silverware and hurried back to the beach. This time she made no mistake in selecting the path...

Madge worked grimly at the oars as she endeavored to reach the overturned canoe. What had become of Anne? With a fast beating heart, she watched the water for a glimpse of the g...

Madge Sterling did not give the impression of a girl easily daunted. Gazing out across the stretch of ruffled water toward the pine-covered isle which drowsed like a huge green...

“I’m afraid it really isn’t much of a clue,” Anne confessed, escorting her friend into the living room. “Just before Father died he tried to tell where he had hidden the formula...

She walked down to the landing with him although she knew without looking that all of the boats save one were gone. The skiff had been rented out earlier that morning to another...

It was too dark for the girls to distinguish objects either on the water or along the shore, but a moment after the light went out they distinctly heard the sound of oars workin...

Although the sky had cleared, evening shadows were creeping over the lake. Madge rowed steadily, knowing that soon it would be dark. She wondered if her long absence from home h...

Madge stepped back to permit Anne to take her place at the chimney. Both were trying desperately to remain calm, attempting to make themselves believe the book had only been mis...

“I fear I’m at his mercy,” Anne returned in a disheartened tone. “What can I do in twenty-four hours? I can’t borrow enough money to pay off the mortgage. And if I sold the hous...

Midnight lights burned brightly in the Fairaday laboratory. A group of tense watchers, Madge and Mr. Brownell, Jack, and Mr. and Mrs. Brady, stood watching Anne who was busy at...

“Exactly. And here we’ve been working on the theory that he would use the most simple means of hidden writing. Why, you can write with milk and bring it out by heating the paper...

Madge was impatient to tell Anne her new theory regarding the missing formula but it was not easy to get away early that evening. Bill did not return with his load of stone unti...

For the first time in many nights Madge slept at home. Although she would not have admitted it, “Kim” was responsible for her reluctance to return with Anne to Stewart Island. S...

Jack led Madge a short distance down the shore. After surveying the locality intently to be certain of his bearings, the ranger parted the thick growth of bush which fringed the...