Villains (OSR)

From publisher blurb:

Every hero needs an antihero, every defender of the light must have darkness to keep at bay and every pure‐hearted paladin needs a vile, shadow‐cloaked assassin to cut down. Villains presents seven such malign foes to bedevil your heroes. Each villain benefits from an extensive write‐up including notes on their background, personality, mannerisms and distinguishing marks as well as a fully detailed stat block and plot hooks making it easy to insert the villain into almost any campaign.