When Sarah, an explorer mouse, meets Sam she gives him the courage to finally climb to the highest library shelves--and beyond--and he shows her how to explore the world through reading.

"On the day Juliet Lansdown reports to work for the first time at Bethnal Green Library, it isn't the bustling hub she's been expecting. But in the face of German attacks, she's determined to make it a place where all of their neighbors feel safe and welcome. Katie Upwood is thrilled to be working at the library too, though she's only there until she heads off to university in the fall. But after the death of her beau on the front lines and unexpected...