When the narrator and his companion camp on a remote island, they think they see a body in the water and a man calling to them.

But that's just the start of this clawing claustrophobic story of suspense and mounting terror.

Algernon Blackwood's chilling tale read in four parts by Roger Allam.

First published in 1907 - and described as one of the finest supernatural stories ever.

Producer: Lawrence Jackson

Made for BBC 7 and first broadcast in March 2005. Show less