FROM THE PUBLISHER

Lionel Salind was a rising musical star. His twin brother, Leo Foss, was a researcher in government work that he couldn't talk about. Then the helicopter they were flying crashed.

When he woke up, Lionel learned that both he and Leo had sustained fatal injuries, and he was only alive because the surgeon had used organs from Leo to repair Lionel's slightly less damaged body. More than half of Lionel's brain was gone, and had been replaced with Leo's. Lionel, in fact, had become His Brother's Keeper.

FROM THE CRITICS

Analog

Charles Scheffield...writes classic science fiction, solid and entertaining, and blessed with a sense of very real possibility.

WHAT PEOPLE ARE SAYING

Charles Sheffield is one of the very best hard science fiction writers in the world. — Kim Stanley Robinson

Sheffield's science is fascinating and convincing and so are his scientists. — Joe Haldeman