Molly and the Good Shepherd by Chris Auer

Molly is excited because her third-grade class is going on a field trip to the art museum. She can only imagine all the wonderful and interesting things she'll see. Before she knows it, while at the museum, Molly gets separated from her group. She learns a valuable lesson, not only about paying attention, but about being cared for by Jesus, the Good Shepherd, even during scary times.