In an imaginative wordless picture book, Wiesner (illustrator of Kite Flyer, 1986) tours a dream world suggested by the books and objects in a boy's room. A series of transitions--linked by a map in the book that the boy was reading as he fell asleep—wafts him, pajama-clad, from an aerial view of hedge-bordered fields to a chessboard with chess pieces, some changing into their realistic counterparts (plus a couple of eerie roundheaded figures based on pawns that reappear throughout); next appear a castle; a mysterious wood in which lurks a huge, whimsical dragon; the interior of a neoclassical palace; and a series of fantastic landscapes that eventually transport the boy back to his own bed. Most interesting here are the visual links Wiesner uses in his journey's evolution; it's fun to trace the many details from page to page. There's a bow to Van Allsburg, and another to Sendak's In the Night Kitchen, but Wiesner's broad double-spreads of a dream world—whose muted colors suggest a silent space outside of time—have their own charm. Intriguing.