The Yeerks have decided to try a little experiment. They've decided that if they can develop a way to make people more "willing" to be infested, they can speed up Earth's invasion. So the Yeerks try to invent a substance that will take away the human ability to make a decision. A substance that will eliminate free will.Now the Animorphs are not only faced with trying to slow down the Yeerks' invasion, but they also have to put an end to the genetic testing on a small group of humans. This time there's only one chance to stop the Yeerks. And if anything goes wrong, it's all over...

Marco and the other Animorphs have managed to find out where the Yeerks are planning to build their next ground-based Kandrona. That's a good thing. But the location is supposed to be somewhere near the North Pole. That's a bad thing. The Animorphs 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 and the other Animorphs aren't quite ready to give up the fight.

Cassie and the other Animorphs have another alien invasion to deal with, the Helmacrons. They are fierce, war-like, intent on taking over the earth and only one and a half millimetres long. But they have a dangerous weapon - a shrinking ray.

The Animorphs have no ally more powerful than Erek the Chee. But now he is helpless.

Someone's looking for Tobias. Someone who says she's his long-lost cousin. Tobias isn't sure the person is telling the truth, but she's really nice, and knows a lot about him. And what she tells Tobias definitely gets his attention.It seems a lawyer has discovered Tobias's father's last will and testament. So, Tobias needs to attend the reading. His cousin even offers to go along. But something just doesn't feel quite right. That's when Tobias and the other Animorphs decide to do a little checking on this "cousin." And what they discover will change the rest of Tobias's life...

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 is more than just a little problem. He's deadly...

Something is very wrong with Ax. He's sick, and the Animorphs don't know what to do about it. They can't take him to the hospital. They don't know how to contact the Andalite home world. And Ax is dying.Cassie and the other Animorphs come up with a plan. But it involves finding a new way into the Yeerk pool. There's just one problem: Jake, Rachel, Tobias, and Marco all come down with Ax's sickness. And now, for the first time, Cassie is on her own...

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 put Rachel back together again. Because if it's up to the "twins," Rachel the weak will surrender to Visser Three. Rachel the super bold will try to single-handedly take him down. And twice the trouble may be twice as much as the other Animorphs and Ax can handle...

Faced with moving away from his beloved river in the country, Martin discovers it is possible to make a meaningful connection to nature in the city, too, and find ways to accept changes beyond his control. Martin loves to play by the river near his house. He watches the great blue herons and looks for crayfish and otters. He builds forts and lies in the tall grass near the water. But one day Martin’s parents tell him they have to move away, to the city. The family spend a day in the city, exploring their future home. Martin rides the subway, visits the market, explores the museum and watches a street performer, but none of the city’s charms can compare with the river. Then his parents show him a small stream running through the park, and Martin senses something familiar in the air. When moving day arrives, Martin fills a small glass jar with river water as a keepsake. And when he returns to the stream, he discovers that his connection to nature can be just as wondrous in the city. This poetic story looks at the special relationship between an imaginative child and the natural world, and explores how that connection can be nurtured and recreated in a new place. Key Text Features dialogue illustrations vignettes Correlates to the Common Core State Standards in English Language Arts: CCSS.ELA-LITERACY.RL.K.7 With prompting and support, describe the relationship between illustrations and the story in which they appear (e.g., what moment in a story an illustration depicts). CCSS.ELA-LITERACY.RL.1.2 Retell stories, including key details, and demonstrate understanding of their central message or lesson. CCSS.ELA-LITERACY.RL.1.4 Identify words and phrases in stories or poems that suggest feelings or appeal to the senses. CCSS.ELA-LITERACY.RL.1.7 Use illustrations and details in a story to describe its characters, setting, or events.