Another action-packed adventure from the author of 'Goat Boy' and 'Bomber Boy', featuring Gabby, Matt, Toshiko and Jack.
Kart Girl, state title holder, has the nerve, skill and confidence to beat every driver on the go-kart circuit - and Gabby would give almost anything to win against her.
But away from the track, and out on the river with the rest of the gang, the two arch-rivals discover that they will have to work together if they are going to survive . . .