In this latest book in the acclaimed Over and Under series, a spectacular hike reveals the hidden wonders, rich colors, and layers of wildlife living within a thriving desert slot-canyon.

Kate Messner is the award-winning author of Over and Under the Snow, Up in the Garden and Down in the Dirt, Over and Under the Pond, Over and Under the Rainforest, Over and Under the Waves, How to Read a Story, and The Brilliant Deep, as well as more than 50 other books for young readers. Kate lives on Lake Champlain with her family. When she’s not writing, she loves spending time outside—cross-country skiing, hiking, swimming, and digging in her garden. Learn more at her website www.katemessner.com.

Christopher Silas Neal is the award-winning artist of Over and Under the Snow, Up in the Garden and Down in the Dirt, Over and Under the Pond, Over and Under the Rainforest, and Over and Under the Waves. His work has been published in a variety of books and magazines and featured on television. He currently lives and works in Brooklyn. Find out more about Chris at www.csneal.com.