Brothers Eek and Ack plan to conquer Earth but return unsuccessful and with a spaceship full of dirty laundry (Earth). Eek creates a pet for Ack using snot from the snottle bugs (Pet). These transitional chapter books feature cartoony illustrations and slapstick humor that may appeal to some readers, but paper-thin plots and two-dimensional characters aren't inspiring. Discussion questions and prompts are appended. Glos.