Harry stared at Leila, remembering. His fingers flexed on her arms, and he had to consciously not grip her harder as the implications of her words flowed through him. Ron's body -- claimed by a spirit, and Ron himself, slowly disappearing.
We knew. We saw it happening before our eyes!
He ran his hand over Leila's head, smoothing her hair in a petting motion to soothe her. He pulled a handkerchief from his pocket and dabbed Leila's tears away. "Do you know who the man was? It's ok if you don't, though," he reassured her, not wanting to add pressure to her already stressed state.