Hargreeves
In theory he understood, the dead were just people, but there was something about them that set his teeth on edge that made something twist in the pit of his stomach and made him need in a kind of desperate way to do anything other than look at, acknowledge, listen to the spirits that so often surrounded him. Ben had always been the only dead man that Klaus had been able to stomach, and even then in the beginning he'd been more scared than he was willing to admit. But his brother had only ever been his brother, not the screaming horrible thing that so many of the dead could be.
And the dead in this house? They felt different than those he'd seen back home. Ben said they couldn't do anything but the both of them knew better - Klaus knew that the dead could touch if they really wanted it, they could hurt potentially, they could use him if they knew it was possible, and so the less said about his abilities the better.
It didn't really make sense that there might be something familiar here in this house, if Klaus had stopped to think about it he'd understand that, but he couldn't really seem to find the ability to do things like make sense of what they were presented with. Not when there was something about that room that seemed to beckon him closer, and with his hand still clutching Ben's he pulled his brother along with him. "What's to know?" He said quietly. "It's another door right? We're checking all of them, aren't we?" That had been the idea at least, but Klaus thought maybe, suddenly without much reason for it, that whatever was on the other side of that particular door might be worth sticking around for a while longer. Like there was something inside calling him.