The thrilling conclusion to the epic middle grade fantasy
trilogy from Katherine Applegate, the New York Times bestselling and
Newbery Award-winning author of The One and Only Ivan (now a major
motion picture!), The One and Only Bob, Wishtree, and Crenshaw!

In the beginning, Byx’s original quest was to discover if
there were more of her kind, or if she was destined to become an endling—the
last dairne alive. She did indeed find more dairnes, and along the way she also
created allies among other creatures in her world, including humans, felivets,
raptidons, and wobbyks.

But Byx and her new friends soon learned that it wasn’t just
dairnes in jeopardy of extinction, but that everyone was at risk. With the
world in unprecedented danger, Byx must rally creatures of all kinds to lead a
revolution.

Katherine Applegate’s Endling series has so far earned a
collective five starred reviews, and each of the prior books has debuted on the
New York Times bestseller list. She once again delivers an action-packed
middle grade fantasy with a unique setting, enthralling characters, and
gripping adventure that is perfect for fans of Rick Riordan, Brian Jacques, and
Tui T. Sutherland.