What to read after Ooze Control?

After school, a boy boards an odd-looking bus. Inside, the floor, the seats, and even the ceiling are covered with chewed-up wads of gum. Soon, the sticky wads grow thicker, climb higher, come alive ... and the bus windows will not open! Can the boy escape before the ooze takes control? Step aboard Michael Dahl's (LIBRARY OF DOOM and IGOR'S LAB OF FEAR) addictively creepy SCHOOL BUS OF HORRORS, where the final destination is never expected.