The Solar System is finally recovering from the Great War - a war that devastated the planets and nearly wiped out the human race - and the population of the outer moons, orbiting Jupiter and Saturn, is growing.
On one of those moons, Alex Ligon, scion of a great interplanetary trading family has developed a wonderfully accurate new population model and cannot wait until the newly reconstituted "Seine", the interlinked network of computers that spans the planets and moons and asteroids, comes back online. But when it does, and he extends his perfect model a century into the future, it predicts the complete destruction of the human race.
On another moon, the Search for Extraterrestrial Intelligence goes on, undaunted by generations of failure. And to her amazement, Millie Wu, a young genius newly recruited to the project, has found a signal... a signal that is coming from outside the solar system.
And in his new retreat on a minor moon of Saturn, the cranky genius Rustum Battachariya is still collecting weapons from the Great War. He thinks he may have stumbled on an unexpected new one...but he'll need to disarm it before it destroys the Sun.
Charles Sheffield (1935 - 2002)
Charles Sheffield, born in the UK in 1935, graduated from St John's College Cambridge with a Double First in Mathematics and Physics. Moving to the USA in the mid 1960's, he began working in the field of particle physics which lead to a consultancy with NASA and landed him the position of chief scientist at the Earth Satellite Corporation. Best known for writing hard SF, his career as a successful science fiction writer began in response to his grief over the loss of his first wife to cancer in 1977; Sheffield has been awarded both the Hugo and Nebula for his work and won the 1992 John W. Campbell Memorial Award for Best Science Fiction Novel for Brother to Dragons.. He also served as President of the Science Fiction and Fantasy Writers of America between 1984 and 1986.
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