After having a bizarre dream, Rachel is woken by Ax, who explains Jake's express orders to summon her. That decision bothers her, but her qualms are silenced when Ax breaks her the news of Tobias's probable death. Rachel is willing to do what Jake expected her to do. They fly to Marco's house. Ax tries to fly through his window, but is promptly knocked out by Marco. Or rather, David in Marco's morph. Rachel allows David to morph to golden eagle, and leads him on a chase through town. Rachel plans to lure him into the power lines, electrocuting him. But David outmaneuvers her, and almost kills her. Fortunately, David is attacked by a hawk, which turns out to be Tobias, with David thinking that it is a random red-tailed hawk.
Relieved that Tobias is alive, the Animorphs plan how to trap the traitor. At school, they're surprised, though, when David, in Marco's body, demands the Blue Box, threatening to betray their identities to the Yeerks. Cassie tries to reason with him, but to no avail. Making no progress, David leaves, with Rachel in pursuit. In a secluded spot on the school grounds, Rachel tells him that even if David betrays them, she'd still have time to make short work of him and his parents before she would be silenced by the Yeerks. David tries to attack her, but she pins him down. Having made her threat, she releases him. Soon after, Rachel becomes enraged with the way Jake is manipulating her violent tendencies.
Animorphs is an English language science fiction series of young adult books written by K. A. Applegate and published by Scholastic. It is told in first person, with all 6 main characters taking turns narrating the books through their own perspectives. Horror, war, dehumanization, sanity, morality, innocence, leadership, freedom, and growing up are the core motifs of the series.
The story revolves around five humans, Jake, Marco, Cassie, Rachel, and Tobias, and one alien, Aximili-Esgarrouth-Isthill (nicknamed Ax), who obtain the ability to morph into any animal they touch. Naming themselves "Animorphs" (a portmanteau of "animal morphers") they use their ability to battle a secret alien infiltration of Earth by a race called the Yeerks. The Yeerks are a parasitic race of aliens resembling large slugs that take humans as a host by entering and merging with their brain through the ear canal. The Animorphs fight as a guerilla force against the Yeerks, led by Visser Three, and their program to take over the human race. Morphing into animals allows them to battle the various armies of aliens that the Yeerks use, but it also protects their identities. As far as the Yeerks know, only Andalites like Ax have the ability to morph, and if they knew that the Animorphs were mostly human they would be able to easily find out who they are. Protecting their identities becomes more and more difficult as the series goes on because though someone with the ability to morph can change into any animal that they touch, they can only stay in a morph for two hours or they will permanently become that animal. Throughout the series, we see how the war affects the characters in different ways, mentally and physically.