Karres novels

Captain Pausert, a freelance space trader, gets more than he had bargained for when he frees three slave children from their masters, only to discover that the seemingly harmless little girls are three of the notorious Witches of Karres.

After Captain Pausert and two Karres witches, Goth and The Leewit, realize they are being tracked by unknown forces in the Chaladoor region of space, Goth travels back in time to meet Pausert as a young boy, while, in present time, Pausert and The Leewitface a desperate situation.