Ari Berk is the author of the Undertaken trilogy and Nightsong, illustrated by Loren Long. He works in a library filled to the ceiling with thousands of arcane books and more than a few wondrous artifacts. When not writing, he moonlights as professor of mythology and folklore at Central Michigan University. He lives in Michigan with his wife and son. Visit him at AriBerk.com. Loren Long illustrated President Barack Obama’s Of Thee I Sing; the newest version of The Little Engine that Could by Watty Piper; Madonna’s second picture book, Mr. Peabody’s Apples; Nightsong by Ari Berk; Frank McCourt’s Angela and the Baby Jesus; Love by Matt de la Peña; and If I Was the Sunshine by Julie Fogliano. He also wrote and illustrated the Otis series and was part of the Design Garage for Jon Scieszka’s Trucktown series. Loren’s work has appeared in Time, Sports Illustrated, Forbes, The Wall Street Journal, and The Atlantic. He lives with his wife and two sons in Cincinnati, Ohio. Visit him at LorenLong.com.