“I do. The chances are ten to one, if he had left by way of the front door, that Madame Denise would have seen him.”

“He is some athlete, by Jove, if he climbed a rope to the roof, or even to the photographer’s window,” Chick declared.

“He had confederates who aided him,” Nick replied. “He could not have got away with such a quantity of plunder without assistance.”

“Surely not.”

“Let’s have a look at the bedroom window.”

Nick led the way into the room where, still using his lens, he began a thorough inspection of the window lock, the sashes and panes, and finally the interior sill and the outside stonework.

All that he found of any significance were a few tiny particles on the sill, hardly discernible without a lens, but which, when viewed through it, appeared to be short, yellow bristles, or hairs.

Quick to detect their true character and significance, however, Nick said, quite abruptly:

“I am right, by Jove, in that a rope was used. Here are particles of hemp on the sill. A rope, or a hemp cord of smaller size, was drawn in through this window.”

“But why did the rascal use this window, Nick, after entering through that in the bathroom?” Chick questioned.