This is an ace double novel. Rim ghost Commodore John Grimes of the rimworld's naval Reserve is the Practical hard-headed hero of Galactic battles, not the sort of man you'd expect to find Chase and after ghost. But when Commodore sign up for real proposes a ghost hunting Expedition on the galactic Rim Grimm's dips into the alternate universe. Because room ghosts are real, and shooters from alternate universes, they appear where the fabric of a space grows then. For some, they are a chance to regain lost loves, lost hope, lost chances, but for Sonya and Grimes they are Contraband from outer space a deadly cargo that threatens to share through the fabric of our own reality like a knife through soft butter