He looked at his watch.
"Carefully, now," he said. "We've just about got time. That sentry must be just about passing the place where we got over the wall now. By the time we get there he'll be gone, and we can slip out. We've got everything we came for, now that we've seen that!"
They started on the return journey through the woods. More than ever there seemed to be danger about them. And suddenly it reached out and gripped them—gripped Harry, at least. As he took a step his foot sank through the ground, as it seemed. The next moment he had all he could do to suppress a cry of agony as a trap closed about his ankle, wrenching it, and throwing him down.
"Go on!" he said to Dick, suppressing his pain by a great effort.
"I won't leave you!" said Dick. "I—"
"Obey orders! Don't you see you've got to go? You've got to tell them about the wireless—and about where I am! Or else how am I to get away? Perhaps if you come back quickly with help they won't find me until you come! Hurry—hurry!"
Dick understood. And, with a groan, he obeyed orders, and went.