A boy and his stuffed bunny gaze at a star-lit New York cityscape. The great Sphinx of Egypt sleeps. A child swings joyously across a river. This book offers a tantalizing glimpse of the adventures of Arthur and his imaginary friend, Bun-Bun. Together they travel through the Temple of Dendur at the Metropolitan Museum to another time and place and befriend the lonely boy king, Tutankhamun.