When Ethan checks under the bed for his monster, he finds this note instead: "So long, kid. Gotta go. Someone needs me more than you do. –Gabe" Ethan knows that the 'someone'...

One night, when Ethan reaches under his bed for a toy truck, he finds this note instead: "Monsters! Meet here for final test." Ethan is sure his parents are trying to trick him...