which Belfield had made his finger-prints, and laid them before the detective.
"Observe the prints of the forefinger," he said, indicating them; "there are a dozen, in all, and you will notice in each a white line crossing the ridges and dividing them. That line is caused by a scar, which has destroyed a portion of the ridges, and is now an integral part of Belfield's finger-print. And since no such blank line is to be seen in this print on the glass—in which the ridges appear perfect, as they were before the injury—it follows that that print could not have been made by Belfield's finger."
"There is no doubt about the injury, I suppose?"
"None whatever. There is the scar to prove it, and I can produce the surgeon who attended Belfield at the time."
The officer rubbed his head harder than before, and regarded Thorndyke with puckered brows.
"This is a teaser," he growled, "it is indeed. What you say, sir, seems perfectly sound, and yet—there are those finger-prints on the window-glass. Now you can't get finger-prints without fingers, can you?"
"Undoubtedly you can," said Thorndyke.
"I should want to see that done before I could believe even you, sir," said Miller.
"You shall see it done now," was the calm
