“It might be possible to climb down the shaft,” he cried, after a brief survey, “but not if one were carrying a heavy grip, such as that which he has taken!”

“H'm!” said Dunbar. “You are a writing gentleman, I understand, and yet it does not occur to you that he could have lowered the bag on a cord, if he wanted to avoid the noise of dropping it!”

“Yes—er—of course!” muttered Leroux. “But really—but really—oh, good God! I am bewildered! What in Heaven's name does it all mean!”

“It means trouble,” replied Dunbar, grimly; “bad trouble.”

They returned to the study, and Inspector Dunbar, for the first time since his arrival, walked across and examined the fragmentary message, raising his eyebrows when he discovered that it was written upon the same paper as Leroux's MSS. He glanced, too, at the pen lying on a page of “Martin Zeda” near the lamp and at the inky splash which told how hastily the pen had been dropped.

Then—his brows drawn together—he stooped to the body of the murdered woman. Partially raising the fur cloak, he suppressed a gasp of astonishment.

“Why! she only wears a silk night-dress, and a pair of suede slippers!”

He glanced back over his shoulder.

“I had noted that,” said Cumberly. “The whole business is utterly extraordinary.”

“Extraordinary is no word for it!” growled the inspector, pursuing his examination.... “Marks of pressure at the throat—yes; and generally unhealthy appearance.”