23 books
The Storm and the Fury
Hollow Earth and Other Stories
Gotham by Gaslight
Triumph and Torment
Wake the Devil
The Chained Coffin and Others
The Right Hand of Doom
Conqueror Worm
Strange Places
The Troll Witch and Others
Darkness Calls
The Crooked Man and Others
Seed of Destruction
The Wild Hunt
The Curse Bells
The Complete Short Stories Volume 1
The Complete Short Stories Volume 2
Hellboy in Hell