Lambert spoke to Phillips. "I'm starving to death and I think Miss Crawford must be, too. Will you tell Felix to bring us some food, plenty of it?" One of the sleuths went to the kitchen to give the order. Lambert turned to Morgan. "How did you manage to bring us back?" he asked. * * * * * Morgan shrugged. "It was all guess work at the last. I at first could check the apparatus by your notes, and this took some time. You know you have written me in detail about what you were working on, so when I was summoned by Detective Phillips, who said you had mentioned my name to him as the only one who could help, I could make a good conjecture as to what had occurred. I heard the stories of all concerned, and realized that you must have dematerialized Miss Crawford by mistake, and then, unable to bring her back, had followed her yourself. "I put on your insulation outfit, and went to work. I have not left here for a moment, but have snatched an hour or two of sleep from time to time. Detective Phillips has been very good and helpful. "Finally, I had everything in shape, but I reversed the apparatus in vital spots, and tried each combination until suddenly, a few minutes ago, you were re-materialized. It was a desperate chance, but I was forced to take it in an endeavor to save you." Lambert held out his hand to his friend. "I can never thank you enough," he said gratefully. "You saved us from a horrible fate. But you speak as though we had been gone a long while. Was it many hours?" "Hours?" repeated Morgan, his lips parting under his black beard. "Man, it was eight days! You have been gone since a week ago last night!" Lambert turned to Phillips. "I must ask you not to release this story to the newspapers," he begged. Phillips smiled and turned up his hands in a gesture of frank wonder. "Professor Lambert," he said, "I can't believe what I have seen myself. If I told such a yarn to the reporters, they'd never forget it. They'd kid me out of the department." "Aw, they were hidin' in a closet," growled Doherty. "Come on, we've wasted too much time on this job already. Just a couple of nuts, says I." * * * * * The sleuths, after Phillips had shaken hands with Lambert, left the laboratory. Morgan, a large man of middle age, joined them in a meal which Felix served to the three on a folding table brought in for the purpose. Felix was terribly glad to see Madge and Lambert again, and manifested his joy by many bobs and leaps as he waited upon them. A grin spread across his face from ear to ear. Morgan asked innumerable questions. They described as best they could what they could recall of the strange dominion in which they had been, and the physicist listened intently. "It is some Hell's Dimension, as you call it," he said at last. "Where it is, or exactly what, I cannot say," said Lambert. "I surely have no desire to return to that world of hate."