"Possibly."

"In opposition to that theory, however, is the fact that the forged order is written on one of Venner's printed letter sheets."

"By a little adroit work, Nick, one of the gang could have obtained a sheet of Venner's office paper."

"That is very true," admitted Nick. "But since this is a theory founded only upon conjecture, with no positive evidence to back it up, the stronger probability is rather to the contrary."

"Right, Nick, as far as that goes."

"I think so."

"And what is the second theory suggested?"

"That some clerk in one of the stores got wind of Venner's contemplated purchase, and revealed the fact to one of the Kilgore gang, by whom I am confident—bear in mind—that the crime was committed."

"That theory seems plausible," nodded Chick. "There is young Boyden, you know, at Hafferman's. He may have got wise to Venner's intentions. Garside remarked that he appeared quite anxious to leave the diamonds until Venner should return. That would have been very natural on his part, in case he was then co-operating with the party who finally secured them."

"The same objection again arises, however," argued Nick. "Boyden is not employed at Venner's, and therefore has not access to his letter paper. Furthermore, Venner's visit was made only yesterday afternoon, less than twenty-four hours before the robbery occurred. It seems hardly probable that Boyden was already in league with the Kilgore gang; and, if he was not, it is even less probable that he so quickly got in touch with them."