PreS-Gr 2 The title question is what the inventive narrator of this imaginative picture book asks herself as she lies awake, fancying her parents eating ice cream, making play dough, and building block towers. Yet each time she goes downstairs to check, Hannah finds that they are involved in more mundane activities. The beauty of this book lies in its simple story line, in the charm of the ingenuous protagonist, and in Russo's graphic illustrations. Gouache paintings in muted colors, they present strong images through flat blocks of color. The reality and the fantasy are presented visually, with real situations garnering two-page spreads and Hannah's theories displayed on single pages bordered with objects from her fantasy. Children will relate to Hannah's question; the answer provides a satisfying bedtime book. David Gale, ``School Library Journal''