In this picture book adventure of a now-familiar duo (Cat and Mouse and Something to Do, 1998, etc.), Bogacki describes how the curious cat and the curious mouse explore the green meadow turned white with snow. The two friends climb up the hill, then slide down, down, down. Meanwhile the other mice and cats wake up and go outside to find their siblings. They come upon the two friends covered in white snow and mistake them for monsters. Shrieks turn to delight, and everyone has a great time playing in the snow. When night comes they return to their respective homes to dream of snow. The soft chalk illustrations in grey, tan, and white on blue paper show flat stylized animals in a snowy world. Children will enjoy the brief repetitive text; adults will be glad to have an appealing alternative to Ezra Jack Keats’s The Snowy Day. (Picture book. 3-5)