The Hidden Worlds — Kristin Landon

After the Earth was destroyed by ruthless machine intelligences known as the Cold Minds, the remnants of the human race sought refuge on far-flung planets. Humanity was saved by a hereditary guild of jump pilots who now control all travel and communication among the Hidden Worlds...

Nineteen-year-old Linnea Kiaho lives on a backwater hostile planet, one of the poorest of the Hidden Worlds. To save her family, Linnea does the unspeakable: She accepts an indenture on the godless, decadent home world of the Pilot Masters, hoping that she will be able to barter an old family secret into a future for her loved ones--and perhaps for her planet as well.

Linnea's unwilling master, the pilot Iain sen Paolo, knows nothing about her secret. But to spite his father, he joins her in uncovering a truth that could throw the Pilot Masters into chaos at a time when they can least afford weakness. For after six centuries, the Cold Minds have discovered the Hidden Worlds...