"It is very like you," said Geoffrey.

"It is me," Tchigorsky whispered. "You are to recognize it as me. The idea is that I fell over the cliffs in the darkness and was drowned. I will explain later. Somebody comes."

Tchigorsky darted off as Marion appeared. She looked white and agitated.

"Another horror," she said. "Sims just told me. Who is it?"

"I regret to say it is Dr. Tchigorsky," said Ralph. "He must have walked over the cliff in the darkness. See here."

Marion bent over the body with a shudder.

"Poor fellow," she said tenderly. "Tchigorsky beyond a doubt."

Ralph turned away, as if in grief. But the grin on his face was the grin of Mephistopheles.