Theodore listened, not wanting to interrupt and instead staying quiet and looking thoughtfully at Hermione. "Did you?" He asked curiously. "Time travelled for what purpose?" He wondered what possible scenario this fell into. Some sort of against all odds gallivanting off to save the day? or personal gain? He assumed the former.
If he were being truthful he supposed he could just hand over the books. At any point really. But he had never been inclined to do things the direct way, if the long way around proved more interesting.
"Oh I'd say I'm a little more than curious," he said with a smile. "I admit I came looking for the same materials. I don't generally like leaving things to chance. Perhaps we could help each other?"