A girl falls victim to The Sharing, but later encounters the Peace Movement.

Family fallouts. Media storms. Dead friends. After the failed mission to rescue Ax, Marco and Tobias bond over their mutual depression and isolation. But through all the bad jokes, bad TV, and even worse coping mechanisms, they find that maybe, just maybe, they might be okay in the end.

Cassie embarks on a mission to help someone she considers a friend, but the decisions she makes could bring trouble from both Humans and Andalites. (Originally "The Unofficial")

Tobias struggles to keep control of himself after being trapped in morph. Meanwhile, a used car dealership may be a cover for Yeerk activity.

Twenty years after the final book, in an alt world where the Animorphs survive their final encounter with the Crayak, Ax and Jake meet up for a yearly vigil at Rachel's memorial. They only hope that Tobias will meet them there.

Exactly what it says on the tin. In another universe, Yeerks and their hosts secretly work together to defend Earth from invaders. One day Tom joins a seemingly ordinary club called "The Sharing" and his whole world changes.

Book 2 of the “Fractured” series. Months after David’s betrayal, the Animorphs face escalating threats as the Yeerks prepare for all-out war. Rachel struggles with guilt and recklessness, unsure of her place on the team. Marco’s growing connection with her may be the key to pulling her back from the edge.

writing-prompt-s: "Your roommate is so bad at pretending to be a human, you've started to just automatically back him up in public. Tonight he tells you how nice it is to know the only other alien in the city, and you have to break the bad news."

Miliss 626 receives a voluntary host who is a fairly actress in period movies and TV shows.

In the turmoil of Central America, a Ghost Recon agent infiltrates the resurgent Santa Blanca cartel. Meanwhile, Andalites investigate Earth, suspecting Yeerk activities after strange Z-Space signals. Their paths collide in a tangled mystery, where alliances shift and the true enemy is elusive.

As Marco is dying, he is visited by an old friend.

BOOK ONE In this reimagined Animorphs series, Marco and Rachel, alongside the team, face new challenges as they battle the Yeerks. As the stakes rise, so does the emotional tension between them, forcing them to confront their deepest fears and desires. With shifting loyalties and fragile trust, they must navigate a fractured world where survival is uncertain.

After Rachel’s 7-year-old cousin decides to visit, she finds out her secret. Rachel shows her the blue box and adds a new member to the Animorphs.

Hork-Bajir are not meant to be in the water. And Toby does not trust Andalites. But when a distress call is received, she must learn to conquer her fear and distrust in order to rescue a potential ally.

Asaccah has intercepted a transmission sent from an obscure moon near the Gratt Border. The sender is Ax, and he's escaped the clutches of the Kelbrids and The One. He's calling for help. The Animorphs will not hesitate to investigate, but there are many suspicions regarding the message, and The One is known to make clones of its captives... Is it really Ax?

The Animorphs have a bold new plan: Trap Visser Three as a Nothlit. But, in order to do so, Ax must face his biggest fear.

The One was never meant to be a player in their game; so, when given the chance, the Ellimist and Crayak agree to reset the cosmic game-board in an effort to restore what they believe is theirs. Of course, for one boy and a yeerk, this simple action ends up changing everything.

Makenna is a human with a trashy life. But when she joins the Sharing, everything changes. Theylix-472 is a Yeerk with a low designation and is rather content there. But when his best friend is murdered, everything changes. And together, they will do everything in their power to do what's right- and take down Visser 3. T for war crimes, violence, and blood :)

For as long as either of them can remember, Jake and Marco have been best friends. Even as finals loom and student loans stack, they make time to meet up and hang out. They're a dynamic duo, a perfect comedic pair, and Marco has been in love with Jake for ages. Eventually, that dam has to burst, and he's scared of what will be swept away when it does.

The Animorphs are now fugitives, and the Andalites are after them. When two Andalite Officers arrive to meet Cassie at the Yellowstone Centre, they demand to know where the Animorphs are hidden. If she doesn't tell them, she becomes their next target...

Animorphs AU starting in book 37: The Weakness. Canon compliant up through book 36, before branching off from the canon from there.

Is getting a nice Yeerk enough to make an involuntary host voluntary?

Who was the female that Cassie briefly controlled in "The Sickness", and what happened to her after the war? Rated for mentions of violence and past child abuse.

After receiving the mysterious morphing power from an even more mysterious source, four acting students investigate the Yeerk Invasion that has left its fingerprints on the UK. In particular, there's something odd about the Edlington Estate, where the new owner is hiding something very alien within the antiquated walls...

Somewhere in the Yeerk pool, you know someone is doing this.