"Huh?" The noise escapes Shinichi's mouth before he can think to stop it. That reaction wasn't quite what he expected and he looks the man over again. Well, it was very possible he'd heard of it just didn't recognize the silhouette somehow.

"Oh, you have heard of it." He voices calmly, not understanding the apprehension here not that maybe he shouldn't push it. "I'm actually a really big fan, although Sign of Four is my favorite of all the books."