along until some favorable open space showed, into which a skillful pilot would find it possible to drop lightly and land.
A second volplane further added to Jack's peace of mind. They were now half-way down, and all seemed well. The earth loomed up below, although as yet it took on only a vague, misty effect, due to the weak moonlight.
Jack busied himself in trying to make things out, as for the third time the nose of the heavy observation Caudron was suddenly pointed downward, and they took the next "header."
This time Tom dropped a greater distance. When once more the loud hum of motor and propellers was heard they had almost reached the treetops. Jack gave one gulp, in fear lest his pilot could not make things work as he intended, and that they must crash to the earth while descending at such frightful speed.
Now everything was all right. They could not be more than a thousand feet above the floor of the valley they were following in their homeward route. If anything happened surely Tom would find some way of making a landing, even if a clumsy one that would put their machine out of the running and leave them stranded on enemy soil.
They continued to move along slowly, both looking eagerly to discover signs that would
