Book three in this riveting and mysterious series by master storyteller Andrew Clements picks up where book 2 left off and sends Ben and Jill on an even wilder goose chase as they try to save their school from impending bulldozers. So far, they've cracked a number of clues, but all this searching has left them empty handed (if a little wiser and more savvy). Plus, evil janitor Lyman - who's not really a janitor at all, but a sneaky insider for the devolopment firm wanting to knock down Oakes School - is hot on their trail, making this doubly difficult for Ben and Jill. Not only to they have to find a way to stop the wrecking crew, but they also have to throw Lyman off their tracks. These kids are smart, but can they outsmart the clock as it ticks, ticks, ticks towards total demolition?

Genre: Young Adult Fantasy