Books in the Freyaverse series

Freya Nakamachi-47 has some major existential issues. She's the perfect concubine, designed to please her human masters - hardwired to become aroused at the sight mere of a human male. There's just one problem: she came off the production line a year after the human species went extinct. Whatever else she may be, Freya Nakamachi-47 is gloriously obsolete. But the rigid social hierarchy that has risen in the 200 years since the last human died, places beings such as Freya very near the bottom. So when she has a run-in on Venus with a murderous aristocrat, she needs passage off-world in a hurry - and can't be too fussy about how she pays her way.If Venus was a frying pan, Mercury is the fire - and soon she's going to be running for her life. Because the job she's taken as a courier has drawn her to the attention of powerful and dangerous people, and they don't just want the package she's carrying. They want her soul ...

Neptune's Brood is a brand new space opera from science fiction legend Charles Stross. Shortlisted for the Locus Award for Best Science Fiction Novel and the Hugo Award for Best Novel.She was looking for her sister. She found Atlantis. Krina Alizond is a metahuman in a universe where the last natural humans became extinct five thousand years ago. When her sister goes missing, she embarks on a daring voyage across the star systems to find her, travelling to her last known location - the mysterious water-world of Shin-Tethys. In a universe with no faster-than-light travel that's a dangerous journey, made all the more perilous by the arrival of an assassin on Krina's tail, by the 'privateers' chasing her sister's life insurance policy and by growing signs that the disappearance is linked to one of the biggest financial scams in the known universe.