“No, no!—­take it away!” His breast was rising and falling, and he moved his head about in a dull and wandering way, like a person who had been stunned.  Presently he said, “I shall feel better when I get to bed; I have been overwrought today; yes, and overworked for many days.”

“Then I’ll leave you and let you get to your rest.  Good night, old man.”  But as Tom went out he couldn’t deny himself a small parting gibe:  “Don’t take it so hard; a body can’t win every time; you’ll hang somebody yet.”

Wilson muttered to himself, “It is no lie to say I am sorry I have to begin with you, miserable dog though you are!”

He braced himself up with a glass of cold whisky, and went to work again.  He did not compare the new finger marks unintentionally left by Tom a few minutes before on Roxy’s glass with the tracings of the marks left on the knife handle, there being no need for that (for his trained eye), but busied himself with another matter, muttering from time to time, “Idiot that I was!—­Nothing but a GIRL would do me—­a man in girl’s clothes never occurred to me.”  First, he hunted out the plate containing the fingerprints made by Tom when he was twelve years old, and laid it by itself; then he brought forth the marks made by Tom’s baby fingers when he was a suckling of seven months, and placed these two plates with the one containing this subject’s newly (and unconsciously) made record.

“Now the series is complete,” he said with satisfaction, and sat down to inspect these things and enjoy them.

But his enjoyment was brief.  He stared a considerable time at the three strips, and seemed stupefied with astonishment.  At last he put them down and said, “I can’t make it out at all—­hang it, the baby’s don’t tally with the others!”

He walked the floor for half an hour puzzling over his enigma, then he hunted out the other glass plates.

He sat down and puzzled over these things a good while, but kept muttering, “It’s no use; I can’t understand it.  They don’t tally right, and yet I’ll swear the names and dates are right, and so of course they OUGHT to tally.  I never labeled one of these thing carelessly in my life.  There is a most extraordinary mystery here.”

He was tired out now, and his brains were beginning to clog.  He said he would sleep himself fresh, and then see what he could do with this riddle.  He slept through a troubled and unrestful hour, then unconsciousness began to shred away, and presently he rose drowsily to a sitting posture.  “Now what was that dream?” he said, trying to recall it.  “What was that dream?  It seemed to unravel that puz—­”

He landed in the middle of the floor at a bound, without finishing the sentence, and ran and turned up his light and seized his “records.”  He took a single swift glance at them and cried out: 

“It’s so!  Heavens, what a revelation!  And for twenty-three years no man has ever suspected it!”