Star Princess by Sophie Stern

DIANA has been helping her father search for the Lost Treasure of Dreagle for nearly ten years. They’re closer than they’ve ever been, but when he’s killed and she’s taken captive by the men who shot him, she realizes that there’s no getting out of this alive. She’s been captured, and there’s only one thing that happens to girls who are taken on Dreagle. Resigned to her fate, she begins to adjust to her new life as a captive in the darkness.

Then Max comes, and everything changes.
MAX is the leader of an elite security team called EXTRINSIC. His team can find stolen artifacts, lost information, and captured hostages. They can find anything, for a price. When Extrinsic breaks up a group of Dreaglan smugglers, they’re surprised to discover the men have been stealing more than just lost museum pieces.
They’ve stolen a woman.
A beautiful woman.
The most beautiful woman Max has ever seen.

Diana is scared, terrified, and injured, but Max sees beauty where everyone else only sees pain.
Will she be brave enough to let Max love her?
Is he strong enough to stay with her through the darkness?
“You’re a shining star, and what do stars do? They float in the darkness.”