The field mice become so involved in their Mardi Gras masquerade they forget it is all in fun.

On the run as suspected murderers, the unlucky Baudelaire orphans find themselves trapped in the Caligari Carnival, where they must masquerade as freaks in order to hide from the evil Count Olaf.

While organizing an ice carnival to raise funds for her pen pal's school library, Trixie investigates a mysterious problem facing Regan and a run of thefts and accidents in the neighborhood. There's a new kid in town-a tough boy from New York City who wears a black leather jacket and pointy cowboy boots. Trixie doesn't trust him for a second. She's sure about one thing: Don Mangan is trouble!