Animorphs. Main series

Rachel's friend Melissa is acting very strange. Could Melissa be one of "them?" Rachel plans to enter her friend's house as a cat to unlock the secret from within.

Cassie believes her strange dreams are just a side effect of having been given the alien power to morph into an animal, but when she learns that Tobias has been having the same dreams about the ocean, they realize someone is issuing a call for help.

Attempting to get more information about the Yeerks, Jake is suddenly taken over by one of the parasitic aliens and becomes one of them, and the Animorphs launch a rescue mission.

The wildly popular books by K.A. Applegate are back! The Animorphs return in this update of the classic series. Ax is an Andalite, an alien, stranded on a strange planet he's sworn to defend, even though it's not his own. Since the Animorphs rescued him, he's fought at their side, and in that time they've come to consider Ax a friend. But deep inside, Ax knows he isn't their friend. He can't ever be. Andalites must always hold themselves apart, even...

Marco, Jake, and Ax decide to morph to check out an old friend named Erek and discover that Erek's not even human.

RL 5 ; 009-012. Rachael's got some pretty strange stuff happening. She can't control her morphing. What's going on? No one's sure, but Rachael and the Animorphs have to figure it out-quickly.

There's a new rumor in town. Someone has discovered an item that proves life on other planets exists, and they've been hiding it on a base called Zone 91, the most secret place on Earth. Cassie and the other Animorphs already know about life on other planets. Too well. Their enemies the Yeerks will try to access Zone 91, to find out if what's there will threaten their mission to conquer to the planet. So the Animorphs decide to pay Zone 91 and the...

Jake has discovered that there may be other people who know about the invasion. He has even discovered a Web site devoted to the Yeerks, but he has to be careful about investigating it.

RL 5 ; 009-012. Ax and the Animorphs have a huge problem when they decide to morph mosquitos to slip by some Yeerks. They end up stuck in Zero-space with no idea how they got there, no way to get back to Earth .. and no oxygen.

The blue box Elfangor used to create the Animorphs has been found by David, but David doesn't know what it is. The Animorphs have to get that box at any cost. David ends up on the run with the Animorphs and Ax, and may become the sixth Animorph.

David, the newest Animorph, is not what he appears. His need to control the other Animorphs is all he thinks about. And the things he does are starting to break up the group. Rachel and the others know that time is running out. The newest battle against the Yeerks is the most important one yet. And it's not one that will wait. Winning this fight could mean slowing down the invasion. But no one knows what to do with David. Because the newest Animorph...

Cassie and the other Animorphs have a few little problems. A few very little problems. Actually, the problems call themselves Helmacrons. They're less than an inch tall, and they're pretty upset at Cassie. They believe she stole their ship. Cassie thought it was just a toy and gave it to charity. Now the Helmacrons want it back. So the Animorphs have a new dilemma. Because the Helmacrons have their own secret weapon: They can shrink other beings...

The Ellimist and the Crayak are to fight each other and determine the fate of the Animorphs.

The Yeerks are working on a drug that saps humans of their free will but the Animorphs show them that human free will runs deeper than any drug can reach.

Rachel is falling apart. Literally. Her newest morph has the ability to regenerate its limbs, but when Rachel demorphs there's a lot more Rachel than when she started out. One more Rachel, to be exact. Rachel is an okay person to have around, but two could be considered overkill. Especially two Rachels with completely opposite personalities: one is pathetically weak; one is super strong and super nasty.Now the Animorphs have to figure out a way to...

A single Arn, Quafijinivon, the last member of the race that created the Hork-Bajir has survived. He has seen his entire people wiped out. He has seen the Hork-Bajir enslaved. Now, after a lifetime of planning and plotting, he wants to get his revenge on the Yeerks. And he wants to atone for the problems the Arn have caused. He is old and weak. But he has something the Yeerks have reason to fear: the Ixcila, the mind pattern and persona of Aldrea-Iskillion-Falan....

Morphing into killer whales, the Animorphs discover a whole new world where humans with gills exist in the deep waters below.

Andalites have finally arrived on Earth. Ax and the other Animorphs now have allies willing to fight against the Yeerk invasion. But there are only four Andalites. Not nearly enough to defeat thousands of Yeerks. Not enough to stop humans from being infested. Everyone agrees that the battle must continue, but the Andalites don't want to fight alongside humans. They feel their skills will be less than adequate. And they demand that Ax choose a side....

Rachel and Ax must evict the tiny alien Helmacrons from Marco's head and prevent them from stealing the morphing cube.

The Animorphs have been split up before. And they've had to fight battles without one another. But this time is very different. Not only is Cassie totally alone, she's managed to find herself in Australia. In the rural Outback. The other Animorphs don't even know she's there. Cassie doesn't have any idea where she's going, or if she can even survive the rugged terrain. But she does know she has to get to a town or village and contact her family...

The Animorphs have managed to contact the Andalite home world, but the battle is far from over. Visser Two has arrived on Earth, and he's not happy about the state of things. He decides the best way to take over Earth is to have the humans destroy each other, exhausting their weapons in the process. He's going to start World War III. Ax and his friends know that Visser Two means business. There are only two ways to keep him from destroying everything...

Rachel is captured by David, the sixth Animorph who was once trapped and left on a deserted island. He's back and wants revenge.