After years of unprepossessing folderol--the wearisome Nine Princes in Amber retreads are depressingly typical--Zelazny bursts forth with, well, ``Victorian light supernatural fantasy'' just about covers it. Narrator Snuff, a guard dog who performs complex thaumaturgical calculations in his head, has many duties: to keep various Things firmly trapped in mirrors, wardrobes, and steamer trunks; to accompany his master, Jack--he of the magical blade--on weird collecting expeditions into the graveyards and slums of Victorian London; and--for a single hour each night--discuss the day's goings-on in human speech. Snuff's neighbors include: Jill the witch and her familiar, Graymalk the cat, with whom Snuff forms a friendly alliance; Sherlock Holmes, Dr. Frankenstein, Dracula, a werewolf, and a satanic vicar. The witches, detectives, doctors, vampires, etc., along with their equally industrious familiars, trade information and scheme for advantage as the full moon of Halloween approaches; at that time, a magical showdown to decide the fate of the Earth will occur. Some of the characters are ``openers,'' determined to open a magical doorway allowing the Old Gods to reoccupy the Earth; others are ``closers,'' equally resolved to keep the magical door nailed shut; and a few are involved yet stand outside the Game altogether. Snuff's problem is to discover who is which. Sparkling, witty, delightful: Zelazny's best for ages, perhaps his best ever