How could he miss her when she was always there? Everywhere. All the time. For the last month, she’d been behind him on the ropes course and ahead of him in the cafeteria and beside him at the shooting range, drilling bull’s-eyes and giggling in a way that made her part prodigy, part psychopath. She was oxygen and he was too stubborn to breathe, so it was fitting, he supposed, that she would be the person he’d be locked inside a small, enclosed space with, sucking up all the available air.