An action-packed and hilarious animal fantasy adventure from New York Times bestselling author and National Book Award finalist Eliot Schrefer, "this new series stunner" (Kirkus starred review) will thrill fans of Warriors and Spirit Animals.

Caldera has forever been divided into the animals who walk by night and those who walk by day. Nightwalker panthers, like young Mez and her sister, have always feared daywalkers as creatures of myth and legend.

Then, in this captivating animal fantasy series, Mez discovers that she can enter the daylight world, and she rushes to discover what it means to cross the Veil—and the extent of her newly uncovered magical powers—before a reawakened evil threatens everything she’s ever known.

Now, with an unlikely group of animal friends—including a courageous bat, a scholarly tree frog, and an anxious monkey—Mez must unravel an ancient mystery involving magical animals and face her greatest fears, if they are to have any hope of saving their endangered rainforest home.

• A Panther with a Secret Power: Young panther Mez was born during an eclipse, giving her the rare ability to cross the magical Veil between the day and night worlds and turn invisible.
• A Team of Unlikely Heroes: To stop a rising evil, Mez must join forces with a courageous bat, a scholarly tree frog, and an anxious, fire-wielding monkey.
• High-Stakes Quest: This small band of friends must unravel an ancient mystery to have any hope of saving their endangered rainforest home from the clutches of the terrifying Ant Queen.
• Enchanting Rainforest Setting: Explore the magical world of Caldera, a land divided by day and night, and filled with talking animals, creatures of legend, and a looming ancient evil.