Detachable flashlight with LED and 5 sound triggers Exciting pop-up art on each spread Use flashlight to cast shadows while reading story includes 2 replaceable AAA batteries Written in charming rhyme, a firefly flies at night, casting its glow on various nighttime creatures. Each spread features a large pop-up of a different animal or insect, which the reader can light up with the flashlight, to cast shadows. Some spreads contain directions for making hand shadows. When the firefly is ready for bed, who will light up the sky instead? The moon!