The Baudelaires escaped the Hostile Hospital (which was kind of in the middle of nowhere) in the trunk of Count Olaf’s car (bold move). As Olaf and his troupe of baddies drive into the hinterlands to meet with a psychic that’s been feeding Olaf information about the Baudelaires. When they arrive, the kids need to figure out how to either escape (impossible, they’re in the middle of nowhere) or blend in. But how to blend?
Luckily enough, the carnival also has a freak show. So the kids disguise themselves (no better than Olaf ever did, but in these books people aren’t especially bright) as freaks: Sunny wears a long beard wrapped all around herself and becomes Chabo the Wolf Baby; Violet & Klaus share one shirt and become Beverly and Eliot, the two-headed freak. So they get taken on as part of the freak show, and bond with the freaks. They also get to know the psychic, who isn’t all that she seems. Of course Olaf does what he does, and bad things happen.
I apologize if my reviews all sound very similar regarding these books, but if you’ve read them, you know that they are pretty similar, aside from the various types of peril the kids are in. I honestly have no idea how the series ends, but I do sincerely hope that the kids get some kind of resolution.