"What do you think they are?" said Mr. Cromering, turning to Colwyn.

"I think they may have been made by a box," was the reply.

"You are not suggesting that the murderer threw a box out of the window?" exclaimed Superintendent Galloway, staring at the detective. "Look how straight the line from the wall is! A box would have fallen crookedly."

"I do not suggest anything of the kind. If it was a box, it is more likely it was placed outside the window."

"For what purpose?"

"To help the murderer climb into the room."

"He didn't need it," replied Galloway. "It's an easy matter to get through this window from the ground. I can do it myself." He placed his hands on the sill, sprang on to the window ledge, and dropped back again. "I attach no importance to these lines. They are so faint that they might have been made months ago. There is nothing to be seen here, so we may as well go and look at the footprints. Show us where the marks of the footsteps commence, Queensmead."

The constable led the way to the other side of the house and across the green. The grass terminated a little distance from the inn in a clay bank bordering a wide tract of bare and sterile land, which extended almost to the summit of the rise. Clearly defined in the clay and the black soft earth were two sets of footprints, one going towards the rise, and the other returning. The outgoing footsteps were deeply and distinctly outlined from heel to toe. The right foot plainly showed the circular mark of a rubber heel, which was missing in the other, though a sharp indentation showed the mark of the spike to which the rubber had been fastened.

"The footprints lead straight to the mouth of the pit where the body was thrown," said Queensmead.

"What a clue!" exclaimed Superintendent Galloway, his eyes sparkling with excitement. "You are quite certain the inn servant can swear that these marks were made by Ronald's boots, Queensmead?"