From publisher blurb:
A world of ghosts and ghouls awaits the unwary investigator who is scared of the dark!
Dark and brooding woods, where trails appear and disappear at will and the undergrowth grows suddenly thicker once a traveller has left the path. Abandoned castles, where those who sleep within suffer terrible nightmares of grasping hands emerging from darkness. Ancient battlefields, where those who tarry too long develop feelings of despair or belligerence.
These places are known among the Leagues of Adventure as lairs, and this supplement — reproduced from a lengthy lecture by the Ghost Club — provides Gamemasters with rules and advice for creating and using them.
Inside you’ll find a range of devilish powers for turning ordinary sites into places of terror, sample lairs, and a bonus chapter with more occult relics.