Ron doesn't think about it for too long. The Horcruxes are real. And if he hadn't known that before the locket, he's well aware of it now. He nods.

"Yeah, all right," he says, after another moment and another nod. "We need to keep looking then. I mean it. We can't be sitting around and thinking about it. We'll revisit places if we have to."

Especially if the search would mean motivating Harry again.