Crooked Kingdom (Six of Crows, #2)

by Leigh Bardugo

“What is wrong with him?” Nina grumbled as they went back to the sitting room to drill Colm on his cover story. “Same thing that’s always wrong with him,” said Jesper. “He’s Kaz Brekker.”

“He doesn’t say goodbye,” Inej said. She kept her eyes on the lights of the canal. Somewhere in the garden, a night bird began to sing. “He just lets go.”