Concerning the key, Heiji wanted to tell Kaito and Shinichi where they'd found it, but Homura's instructions had been pretty specific: don't say where, don't say how. He had already disobeyed orders by even revealing that they'd found a key. So for now, he let the subject drop.

Heiji snorted, "Classics. Right. Y'want classics, y'should try Ellery Queen. Not that they'd have it here..." He'd already checked, but he wasn't about to admit that he'd scoured every bookshelf for a stray issue here or there.

"Y'lookin' f'r anythin' in particular here, Kuroba?"