He glances down towards her outstretched hand, staring at the gem with wonder for a moment before he lifts his own hand to take it, carefully, between his fingers, as if worried that it might break at his touch. There's still a trace of a smile on his face as he does so; it seems just a small gesture, but he's touched by it, regardless.

"Ruby," he repeats, tearing his eyes away from the gem to look at her again. "That's a lovely name."

He lets the ruby roll from between his thumb and forefinger into the palm of his hand, and then closes a fist over it in protection. "Thank you. I'll keep it safe."

But then, it catches his attention — she said "again". Which seems to imply that he'll wake up eventually, as he'd have to in order to go back to sleep and return here. So he'll be returning to the house, at some point. Didn't she say she used to live there, as well...? "When I wake up— ah, perhaps— I could try to find you?"