On one of his first B.P.R.D. operations, agent Abe Sapien leads a naval crew to a sunken Soviet U-boat to retrieve an ancient relic. What he uncovers is a paranormal crime scene, with a tanker full of dead men and secrets that should've remained buried in the deep. Written by Mike Mignola and John Arcudi, and featuring the chilling artwork of Peter Snejbjerg (B.P.R.D.: War on Frogs), The Abyssal Plain explores another early Abe solo adventure, in the spirit of Abe Sapien: The Drowning and Abe Sapien: The Haunted Boy.