A treasure trove of local knowledge (if you can decipher his insane ramblings).

Alaster the Village Idiot is a terrible sight to behold. He wears old dirty clothes and smells like ale, vomit, and feces. His hair is a tangled mess matted with mud. 
 
Long ago, he was a highly skilled rogue whose party was consumed by zombies in Barrowmaze before his eyes. The sight of the slaughter made him insane and he wandered the Barrowmoor for days before being found by Valeron the Elf. 
 
Alaster ekes out on existence through the charity of select villagers like Bollo, Perni, Valeron, and the clerics of St. Heironeous.  Villagers often hire him to make decrees in the village square, though due to his insanity they sometimes don't come out as they should.