Here's Taurus the bull, strong and fast. Cetus the whale, waving a mighty tail. Orion, with bow and arrow in hand. Babies can trace the imaginary lines that turn random stars into ancient constellations--and, in a special treat, create a crinkling sound by tracing the channel of shimmery material underneath the last illustration in the book. That same mysterious, compelling crinkling sound persists when baby and parents hold the book and rub the crinkly material on the back cover.