Back to the Divide

Snakeweed, the arch villain, is at large. Having failed to sell
bad magic to the real world, he wants to go back home. All he
needs is the spell hidden in Felix’s notebook. Snakeweed’s visit
leaves Felix reeling—and his parents literally rooted to the spot.
Felix must find a way back across the Divide to find a countercharm
that can save his parents and the Earth in time.