Three short novels by some of science fiction's greatest writers — Robert Silverberg, Robert Zelazny, and James Blish, with an Introduction by Arthur C. Clarke. Each writes a short novel on a theme proposed by Clarke: With increaing technology goes increasing vulnerability.

Visit New York after sea level has risen 30 feet, where everyone paddles around the skyscrapers in boats and trash disposal is an important industry; a mid-ocean platform drilling for — magma in the earth's core; and what happens after a terrorist attack has caused mass amnesia!