He groped in the offending tail-coat pocket and—not the first to do so!—stared at what he found in his hand—the emerald! Its brooch setting was unclasped, the wicked steel pin of it was pointing at a challenging angle in the air. He glared viciously at the offending point which had wounded his innocent person; then his eyebrows relaxed into a stupefied stare at the stone itself.

"Great God!" he said three times, "Great God! Great God!"

Birds of the Empire.
I.—The Parrot Attaboy, in action.

There is a current impression, taken I think from the great spate of detective stories upon which we are all fed, that your professional detective has no brains whatsoever and would be no match for the sloth of the Andes, or the sluggish waddle-duck of Australian and Imperial fame. It is an error. They are men as we are and their intelligences, such as they are, work more or less under the spur of prospective advantage. Within three minutes Mr. Collop had grasped the fact that fame, security, promotion, a permanent, good, appreciated, livelihood lay in his outstretched palm. Had he not found the emerald? How he had found it, why it was there at all, he knew not. But he had quickly seen how its possession might be used.

"There you are, you great blighter," he murmured, addressing the charming gem. "Damn your green eyes! I'll make you work, I will! William, my boy, here's something that's got to be thought out!"

For the first time for many months, Mr. Collop thought, really thought; "concentrated" as he would have put it.

He would have done it better perhaps if he had not been so full of whiskey. But shock is a powerful stimulus. And he was already three-quarters sober and coming to conclusions.

For a long time the effect of this unusual exercise was a blank and a confusion of mind; then there broke in upon the silence a sound which startled him horribly. A voice, somewhat muffled, uncertain, had spoken in that silence where none but him could be. He had heard it! Or was he mad?