Then they pulled open the door, and into the light staggered Tom Swift, a most woe-begone figure, and showing the effects of his imprisonment. But he was safe and unharmed, though much disheveled from his attempts to escape.

"Thank Heaven, you've come!" he murmured, as he clasped Ned's hand. "Is the tank all right?"

"All right!" cried Ned. "And now tell us about yourself. How in the world did you get here?"

"It's quite a yarn," answered Tom. "I've got to pull myself together before I answer," and he sank wearily down on a step, looking very haggard and worn.

Chapter XXIII

Gone

"Here, eat some of this," and Ned held something out to his chum. "It'll bring you up quicker than anything else, except a cup of hot tea, and we'll get that as soon as you can get away from here," went on the young bank clerk.

"What is it?" Tom asked, and his voice was very weary.

"It's a mixture of chocolate and nuts," replied Ned. "It's a new form of emergency ration issued to soldiers before they go over the top. Our Y.M.C.A. is sending a lot to the boys from around here who are in France. I was helping pack the boxes ready for shipment, and I kept out some to show you. Lucky I had it with me. Eat it, and you'll feel a lot better in a few minutes. You haven't had much to eat, have you?"