In this new book by the author of Blackcollar and the #1 New York Times-bestselling Heir to the Empire, Timothy Zahn imagines a technology that could alter our perception of life and death forever.

For Dr. Adrian Sommers, a split second of driving while distracted leads to tragedy-and obsession. His family destroyed, he devotes his entire being to developing Soulminder, a technology that might have saved his son as he wavered on the edge of death. Sommers's vision is to capture a dying person's life essence and hold it safely in stasis while physicians heal the body from injury or disease. Years of experimentation finally end in success—but those who recognize Soulminder's possibilities almost immediately corrupt its original concept to pursue dangerous new frontiers: body-swapping, obstruction of justice, extortion, and perhaps even immortality.