This is volume 1 in Endling .

This book has been graded for interest at 8-12 years.

There are 416 pages in this book. This book was published 2019 by HarperCollins .

K. A. Applegate is the author of the bestselling Animorphs series, as well as the Remnants and Everworld series, Home of the Brave, and the Roscoe Riley Rules series. She lives in Tiburon, California.