The song is from "The Oaken Throne", in the second book of the Deptford Histories, in which Hobb actually makes a personal appearance. Hobb, according to the book, is an enormous red-furred rat with goat's horns and hooves, the size of a large tree. Freaky bugger. The other two members of the Raith Sidhe (pronounced "rayth shee") are Mabb and Bauchan. Mabb is a rat goddess with a third eye on her forehead who visits her followers in dreams, and Bauchan is the trickster god who can shapeshift into whatever he wants but is generally portrayed in the rats' icons as a headless rat (because he can wear whatever head he likes). Their sacrificial victims are skinned alive and eaten.

I'm quite keen to sacrifice another Sue to Suruth Scarophion at some point. Scarophion is a snake god, capable of destroying the whole world if he ever gets free from the imprisonment the heroes' ancestors put him in, and his followers kill their victims with a particularly horrible poison which slowly melts them into puddles of black goo.

Yes, these books are supposed to be for kids.

Hoo boy... yeah, I'm not sure if I want to imagine what Hobb is like if he wants victims sacrificed to him in that sort of fashion. *shudders*