The tropical rain forest is Tepui's home. He treasures the lush, humid land where capuchin monkeys, three-toed sloths, jaguars, scarlet macaws, and a splendid array of other wildlife share a rich symbiotic existence. But today is doomsday for young Tepui's beloved rain forest. A caravan of bulldozers and trucks will soon arrive from Caracas to level the forest.

Determined to stop the tragic destruction of his world, Tepui accepts a challenge as mysterious and magnificent as the rain forest itself: to discover a nameless butterfly.

From a microscopic look at a colony of vicious army ants to a timely overview of the rain forest's vital role in the Earth's ecology, Newbery Medalist Jean Craighead George takes readers on an unforgettable journey through a wondrous tropical landscape.