Bestiary unlock for Ghoul
Scary picture of a girl: http://www.youtube.com/watch?v=f9F5xt4Ql9A
Speak to Noglik in the Marshes of Madness, located at 31k,12k [Hargruk's Camp]. (He's not in one of the huts, he's a goblin hiding under a tree, north east of the big totem)
You actually have to have encountered a Ghoul before talking to him, otherwise he says "You talk to me when you bash one 'uv dem stinky humies. Dere Scary!" There are some just outside of Hargruk's Camp, slightly SW.