Onyx Storm (The Empyrean #3)

by Rebecca Yarros

“I am as unknown as he is, and you still trust me,” she says. “I will not be another battle you have to fight.”

You might be angry when you realize I didn’t wake you to say goodbye. But it’s only because I no longer fully trust my ability to walk away. —Recovered Correspondence of His Grace, Lieutenant Xaden Riorson, Sixteenth Duke of Tyrrendor, to Cadet Violet Sorrengail

Weird. There’s no mark at the back of his neck like he carries on his palm. There hadn’t been one on Dain’s wrist, either.