The window of Mr.Glenthorpe's room, which was above the bar parlour, was not more than four or five feet away from the round-shouldered side of the hill.

From that point the hill fell away rapidly, and the first-story windows at the back, where the house rose from the flat edge of the marsh, were about fifteen feet from the ground.

The space between the inn wall and the beehive curve of the hill, which was very narrow under Mr.Glenthorpe's window, but widened as the hill fell away, was covered with a russet-coloured clay, which contrasted vividly with the sombre grey and drab tints of the marshes.
"It was an easy matter to get in this window," said Superintendent Galloway.

"And here's the proof that the murderer came in this way." He stooped and picked up something from the floor, close to the window, and held it out in the palm of his hand for the inspection of his companions.

It was a small piece of red clay, like the russet-coloured clay outside the window.
"Here is another clue," said Colwyn, pointing to a fragment of black material adhering to a nail near the bottom of the window.
"Ronald ripped something he was wearing while getting through the window," said Galloway, detaching the fragment, which he and Colwyn examined closely.
"Have you noticed that ?" said Colwyn, pointing to a pool of water which had collected near the open window, between the edge of the carpet and the skirting board.
"Yes," replied Galloway.