Ring of Charon & Shattered Sphere by Roger Macbride Allen 1990
Condition; Yellow staining in the books
General wear and tear
The first book in the Hunted Earth series, published to tie in with the hardcover publication of its sequel, The Shattered Sphere.
The Earth has disappeared, but was it destroyed by an unauthorized gravity experiment, or was the planet kidnapped by an alien race? Humanity must discover the answer before it's too late.
