Applegate Katherine Alice. The Animorphs 43. The Test

The book was ghostwritten by Ellen Geroux.As the book opens, Tobias discovers Bobby McIntyre, a missing child who was hiking through the woods. He leads the boy's father and a search party to his son.Throughout the book Tobias deals with the psychological after-effects of the torture he endured at the hands of the sadistic sub-visser Taylor. He continues to question his own strength and resolve.Taylor, claiming she is now part of the Yeerks' Peace Movement, enlists Tobias to try and sabotage the Yeerk pool. All of the other Animorphs, except for Cassie, who declines on moral grounds, accompany him and Ax as they dig a tunnel to the pool. In order to dig a tunnel to the Yeerk pool, Tobias and Ax alternate turns in Taxxon morph, which has a nearly uncontrollable constant hunger. In fact, Taylor has been working for Visser Three, and sets off a gas explosion. Cassie is able to turn off the gas from its control station, injuring several humans in the process. She is once again distraught by the violence she has had to use to save her friends. Taylor is presumably killed in the gas explosion.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.