The Ku is a Mythburg vigilante. He appears to be some sort of crow like humanoid that can do such things as glide off of buildings, make a quick escape, has extreme accuracy with bows, and has taken an interest in the Pigsfeet Canning mystery of The Cans.

• Shot an arrow with a note warning that Orangebeard The Lovely is involved with the Pigsfeet Canning mystery. The arrow landed at the feet of The Party.
• Helped incapacitate two guards outside of the Pigsfeet Canning facility to enable The Party to break inside.