With a snip and a clip, two paper mice are made, and they are given names: Della and Ralph. In Megan Wagner Lloyd's story for readers 4 to 7, Della dashes up the stairs, while Ralph skitters through the dining room. Each alone, they explore their new house in the dark. But such a big, dark place can be scary for mice—until they find each other, and discover that a second set of paws makes everything easier. Tinted richly blue to reflect the after-hours setting, Phoebe Wahl's watercolor and collage illustrations are charming, especially the image of the mice dancing on a record turntable.