The Extreme
When the evil Yeerks start wreaking havoc at the North Pole, Marco and the other Animorphs must use their special powers to stop them from taking over one of the coldest places on Earth.
Extraterrestrial beings, Science fiction, Juvenile fiction, Metamorphosis, Fiction
Katherine Applegate
Katherine Alice Applegate is an American writer, best known as the author of the Animorphs, Remnants, Everworld and other book series. She won the 2013 Newbery Medal for her children's novel The One and Only Ivan. Applegate's most popular books are science fiction, fantasy, and adventure novels. She won the Best New Children's Book Series Award in 1997 in Publishers Weekly. Her book Home of the Brave has won two awards. - [wikipedia](https://en.wikipedia.org/wiki/Katherine_Applegate)