swung swiftly to one side and stood trembling, again a foot and a half to the left of its normal position when shown the other pictures!
"That will do for the present," Trant dismissed Wong Bo. "Send him back to his cell, away from the others," he said to Walker, with flashing eyes. "We will try the rest—in turn!"
And rapidly, and with precisely the same questions and test he examined Billy Lee and Sing Lo. Each man made precisely the same denials and in the same manner as Wong Bo, but to the increasing wonder and surprise of Walker and the utter astonishment of Siler, for each man the light stayed steady when they were asked if they knew the other Americans named; while for each the light swung suddenly wide and trembling when Walter Newberry's name was mentioned and when his picture was shown. And for Sing Lo also—precisely as for Wong Bo—the light wavered suddenly and swung, quivering, a foot and a half to the left when they were shown the Newberry home.
"Bring in Sin Chung Ming!" the psychologist commanded with subdued fire shining in his eyes; but he hid all signs of excitement himself, as the government agent handed the last Oriental over to him. Trant set the yellow hands over the plates and started his questions in the same quiet tone as before. For the first two questions the light moved three times, as it had done with the others—and as even Ferris and Siler now seemed to be expecting it to move—only this time it seemed even to the police officers to swing a little wider. And at Walter Newberry's
