- Narrator: Rachel
The Animorphs sneak into the Chapman house to get intelligence on the Yeerk's movements.
Tropes:
- Animal Motifs: Discussed. Jake and Rachel had dreams about the morphs they acquired - great dreams about being a tiger or an elephant, nightmares about being a lizard or shrew. They conclude that some morphs don't fit their personalities well.
- Attempted Rape: A man Rachel describes as late high school or early college starts coming on to her, doesn't take no for an answer, and tries to pull her into his car. He chases her into an alleyway, at which point he finds that the thirteen-year-old girl he was chasing has been replaced with a half-elephant monstrosity.
- The Bait: Rachel has to morph into a shrew and use herself to lure Fluffer out so that the others can grab him, and she can acquire him.
- Bad Boss: Visser Three is an all-around Jerkass in his meetings with Iniss 226 and reveals that he ate the last officer who disappointed him by turning into a Vanarx, an alien that preys on Yeerks.
- Blaming the Victim: The grown man pursuing Rachel really rattles her; she blames herself for being careless about walking home alone and having to morph to escape the situation, and when she tells the others about the incident, Marco, Jake, and Cassie all blame her too, though only Marco wants to castigate her about it. In the comic adaptation, Cassie doesn't blame her.
- Cats Are Superior: Rachel enjoys the swagger of the tomcat's mind, which she compares to Clint Eastwood walking into a saloon and everyone getting out of his way.
- Cat Up a Tree: Trying to acquire Fluffer becomes difficult when he runs up a tree. Rachel morphs shrew to lure him down, at which point Jake and Marco grab him and are scratched quite a lot in the process.
- Curb-Stomp Battle: Because he gets the drop on him while the villain is not morphed, Jake, in his tiger morph, nearly kills Visser Three. If Visser Three’s Hork-Bajir controllers weren’t there, Jake likely would have killed him.
- Daddy Had a Good Reason for Abandoning You: Chapman and his wife agreed to not fight their Yeerks if the Yeerks didn't take Melissa as well.
- Does This Remind You of Anything?: The first time Rachel morphs cat, the fur grows in before there are any other changes. Usually the kids find morphing gross, or hilariously gross, but this time Marco and Cassie admire Rachel and say she looks great and pretty, in a way that's a little reminiscent of a furry awakening.
- Gaslighting: When Iniss 226 realizes that "Fluffer" is actually an Andalite bandit in morph, he puts Rachel-as-Fluffer in a carrier and drags her to Visser Three. Melissa sees this, assumes her dad is getting rid of her cat, and begs him not to, to no avail. Then the real Fluffer shows up, and the Yeerk explains to Melissa that the cat in the cage is a similar-looking cat that snuck into their house, and that he's just taking it to an animal shelter. When Melissa asks why he didn't say that from the beginning, he claims to have not heard her screaming and crying right beside him.
- Hillbilly Horrors: The Animorphs encounter a mundane version in the opening, where they're birds of prey being shot at by a pair of drunk rednecks with a rifle.
- Hugh Mann: While morphed into Fluffer, Rachel gets a good look into how Yeerks act when no one is around. The Yeerks in Mr. and Mrs. Chapman go through what's necessary to keep their hosts alive and maintain the Masquerade, but have no social life beyond that and don't entertain themselves or do anything but stare into space until the Visser calls for them. On two different days she finds Mr. Chapman sitting still in a chair while Mrs. Chapman mechanically cooks food, both looking blankly at nothing in silence the whole time.
- Kidnapping Bird of Prey:
- When Rachel morphs shrew, the shrew mind overwhelms her and she scurries off, unable to comprehend her friends calling for her. Tobias stoops down and grabs her to take back.
- In the climax housecat Rachel leaps off a wall to get away from Visser Three's monstrous three-legged morph. Tobias intercepts her mid-leap and is able to carry her just far enough away, though a cat is way too heavy for him to fly off with.
- Lighter and Softer: The comicbook adaptation lightens up Rachel being chased by a man considerably. Instead of a grown adult it's someone who looks about her age and apparently only wants to talk to her. Rather than being afraid, she smirks while saying "Don't follow me into this dark alley!" and the whole thing is Played for Laughs.
- Monstrous Cannibalism: The fact that Visser Three used his Andalite host body's morphs to eat another Andalite in the previous book aside, he reveals he can morph into a Yeerk predator and rip his minions out of their host's heads if they ever fail him.
- Parental Neglect: From Melissa's point of view, her parents just stopped loving her one day. They still feed her and take her to and from gymnastics in their cars, but they've become indifferent and uninterested in her. While this isn't the truth, it still results in the thirteen-year-old Melissa having to raise herself with no one but her cat for company.
- Pragmatic Villainy: Iniss 226 convinces Visser Three to not infest Melissa, because doing so would give Chapman the willpower to subvert him in inopportune moments, and he needs to keep a good profile as a vice-principal and leader in the Sharing.
- Properly Paranoid: Visser Three sees Rachel morphed into a cat and rightly suspects that she is a spy, albeit under the assumption that she is an Andalite.
- Stress Vomit: Rachel has to morph shrew and is struck by its fear, as a tiny prey animal, and its ravenous hunger for meat, as a shrew. She later has a nightmare of herself as back as a shrew eating maggots spilling from a carcass, after which she stumbles into the toilet to vomit.
- Taking You with Me: When their Yeerks discuss the possibility of infesting Melissa, the Chapmans retake control of their bodies and try to strangle themselves so the Yeerks can't do this. This successfully convinces Iniss it's a bad idea.
- Tiny-Headed Behemoth: One of Visser Three's alien morphs is an armored monster as tall as a telephone pole but with a disproportionately tiny head.
- Trojan Prisoner: When Rachel is captured, Jake comes along with her in flea morph, allowing him to sneak away and morph to tiger and save her.
- We Used to Be Friends: Rachel and Melissa drifted away from each other as Melissa's depression from her home life worsened. Melissa rejects Rachel's attempt at reconnecting, and Rachel is forced to leave Melissa alone for each other's safety.
- Wrong Side of the Tracks: Mentioned, Marco's quite surprised to hear that there are rats in Chapman's neighborhood, because it's so much nicer than where he lives.