Shadow and Bone by Leigh Bardugo
"I looked back over my shoulder, searching the crowd. Mal was arguing with the captain from the sandskiff. As if he felt my eyes on him, he looked up and met my gaze. I could see my own panic and confusion mirrored in his white face. I wanted to cry out to him, to run to him, but the next moment he was gone, swallowed up by the crowd."