He put down his cup of tea, then held her hand between both of his. He didn't need to ask who they'd killed, he knew. Ernie. In the dream, the 'they' had likely been Death Eaters. They'd been part of their nightmares for so long, and Hannah even longer after the death of her mother.
He'd tell her it was just a dream, but she knew that already.
"You watched it happen? They made you?" he guessed. After all, wasn't that often what made things the most terrifying?