During the annual Pickle Fest, Abby's boyfriend Marco inexplicably disappears for a day. When he returns, he's the main suspect in the death of a clown. It seems the cops have found Snuggles pushing up water-spurting daisies-and Marco was the last person seen leaving Snuggles's house. Although Marco is still a mystery to her, Abby knows he's innocent. Now she has to find a way to prove it.
Marco's mom is back. But she's not Visser One anymore. Marco's not even sure if she's still a Controller. But he's determined to find out. No matter what it takes. No matter what might happen. Marco wants his mom back. Jake, the other Animorphs, and Ax realize that Marco is under some serious stress. And that the situation with his mom could very well jeopardize everything they've worked for. Now they also have to wonder if Marco will be the one to give away the secret of the Animorphs...
Marco, the other Animorphs, and Ax have managed to find out where the Yeerks are planning to build their next ground-based Kandrona. That's a good thing. The location is supposed to be somewhere near the North Pole. That's a bad thing. The Animorphs and Ax know that the Yeerks are a "cold-blooded" species, but this is a little nuts! Who wants to be near the North Pole without Arctic morphs -- and wearing spandex? Even so, the kids know that if the Yeerks succeed with their plan, Earth is pretty much done for. And Marco, the other Animorphs, and Ax aren't quite ready to give up the fight...
Gabriel loves Silvia, but Silvia loves Marco. Marco wears expensive clothes and drives a fast car. He is more exciting than Gabriel. Then, one evening, something terrible happens. It changes the lives of everybody in the city. Where are Marco and Gabriel? And what happens to Silvia?
Almost nothing could be as bad as finding out your mother is Visser One. The most powerful of all Vissers. The leader of the Yeerk invasion of Earth. But it happened to Marco. And even though he's been handling it pretty well, he knew there'd come a time when he'd have to face her again. Knowing that the Yeerk in her brain had taken his mother away. So when Marco, the other Animorphs, and Ax discover that Visser One is overseeing a secret underwater project, they know they have to check it out. But Marco's not sure if this is a battle he'll be able to fight...
