Honor Among Thieves by Rachel Caine & Ann Aguirre (Honors #1)
Petty criminal Zara Cole has a painful past that’s made her stronger than most, which is why she chose life in New Detroit instead moving with her family to Mars. In her eyes, living inside a dome isn’t much better than a prison cell. Still, when Zara commits a crime that has her running scared, jail might be exactly where she’s headed. Instead Zara is recruited into the Honors, an elite team of humans selected by the Leviathan, a race of sentient alien ships, to explore the outer reaches of the universe as their passengers.