 It is narrated by Marco.The cover quote reads, "The Yeerks are out there..."

The book starts off with the four human Animorphs helping four parrots in a new mall cafe by telling the customers disgusting things about the cafe's food.After this, Marco's old acquaintance, Erek King, who was watching at the room's back, has some disturbing news about his mother, Eva (Visser One).