In one of Niven's rare stories of cross-dimensional travel, an unnamed protagonist discovers the real reason that things seem so foggy on a foggy night.

This early Niven story was the first of many to delve deeply into the legal and ethical implications of organ-transplant technology. It introduces Known Space's organ banks and the breed of criminals known as "organleggers".

Detective-Lieutenant Gene Trimble faces an increasing number of bizarre suicides in a world struggling to come to terms with its place in a multiverse of different timelines, where every decision ever made by anyone becomes an alternate universe.

The tragic story of the first manned expedition to Pluto, and the fate of the surviving astronaut who finds a unique way to prolong his lifespan in hopes of rescue.

Madness from the Inconstant Moon is a collection of early short science fiction works by Larry Niven, the multiple Hugo and Nebula Award-winning author of the Ringworld series. This classic collection includes "The Inconstant Moon", the basis for a forthcoming film by The Arrival producer Shawn Levy.