Wrenched. Legacy of Magic, #5

Matti Puletasi finally has the name of one of the people responsible for her parents' kidnapping. He's a powerful billionaire with magical security strong enough to keep out dragons, but she's determined to get in to question him. Make that interrogate him. Sarrlevi, the elf assassin she's fallen in love with, would usually help her, but he's fighting a battle of his own. The wounds he received in their last skirmish aren't healing, and something in his blood is affecting his mind.
And it's getting worse. If Matti can't reach the billionaire and find a way to heal Sarrlevi, she could lose everyone she loves.