SCENE 21. SAME AS 5. LIVING-ROOM.

_Arthur in reclining chair; crutches beside him. Dalton in corner working on obvious bomb with time clock connection; looks around crazily now and then, gathering the outfit in his arms when he thinks he hears someone coming. Mrs. Dalton pats him gently when he shows violence toward an unseen enemy. Enter Florence; Dalton is first to see her; takes her in his arms joyfully; changed at once. Florence plays with machine; he shows how it operates; imitates train; points to clock; then pantomimes big explosion. They have not heard Mrs. Donnelly enter; she comes forward and picks it up; but he is suspicious and will say no more. Mrs. Dalton draws her gently away; two shake their heads sadly; approach Arthur._

CAPTION 7. THE 4.29 TRAIN DOOMED!