A little scary, a little creepy, with a good dose of humor and lots of wackiness, Too Many Curses by A. Lee Martinez makes for good Halloween reading.
Nessy is a kobold in charge of tending the castle of Margle the Horrendous and caring for all the beasts, ghosts, undead, and enemies that Margle has cursed into bizarre forms over the years. Margle, in case you haven't guessed by now, is a wizard. A greedy wizard with a inordinate love of revenge. So when he dies, all of his odd (and occasionally gruesome) collections of both beasts and former enemies are thrilled. Until they discover that the magics in the castle are unraveling in strange ways.
Nessy is the only one without a curse, so everyone's expecting her to save the day. Nessy would much rather clean house (she prefers things tidy and orderly), but suddenly that's not so much of an option. She and her friends (a bat, a disembodied voice, a purple people eater, and pieces of a wizard in a jar) are now frantically trying to outwit demons, an evil wizardess, and keep monsters on the loose from eating the other residents of the castle.
If you find yourself waiting for Too Many Curses, check out one of A. Lee Martinez's other books. Brew up some hot cider and curl up with some early Halloween candy and one of his books. If you like wacky and a little creepy, you won't regret it.