LARRY NIVEN is the award-winning author of the Ringworld series, along with many other science fiction and fantasy masterpieces. Among his prizes are the Nebula Award, five Hugos, four Locus Awards, two Ditmars, the Prometheus, and the Robert A. Heinlein Award. EDWARD M. LERNER's recent novels include Fools' Experiments, Small Miracles, and Energized. Fleet of Worldswas the first of his many collaborations with Larry Niven. Lerner lives in Virginia with his wife, Ruth.