'Dr Henshaw had created what he thought was a time travel machine and he had sent guinea pigs through it. But now he needed a human guinea pig to test it with. Christopher Wilkonsen thought the whole idea was absurd, until a book that had been sent through the machine came back with a thumb print of his lost sweetheart Vanessa on it' (www.amazon.com)

Practical and hard-headed John Grimes is not the sort to believe in ghosts but he's willing to give psychics a chance when shapely Sonya Verrill, a commander in the Federation Survey Service, proposes a ghost-hunting expedition in the sector around Kinsolving's Planet. Out where the fabric of space wears thin, ships have encountered Rim Ghosts—apparitions of craft and crewmates from alternate universes. When Grimes organizes a séance to make contact, their ship is yanked into an alternate universe, and their only hope of getting home lies in a lost relic - a sleeper ship from the first age of space exploration.