Emma just nodded, because it was complicated in that manner, because as much as most people had their groups, some didn't. And some possibly had two leader types, or no leader types. And what about the ones on their own entirely? "Yeah, don't worry, where it counts, we manage." And they had, really. Between the research group with Hermione and Elizabeth leading the way, and the more active fighters in the group, Rick staying in Marrowood to secure vessels and the others going to the Further, they'd been cohesive and worked well. Despite not having a dictated leader type.
The monster manual wasn't quite as intimidating as Gretel's Grimmoire, but it still showed steady dedication to at least one project of study. "Stiles, it's not bullshit, this is really good." It might be fairly narrow in subject and few people would really need a bestiary, but it was possibly more use than he knew.
"We might not have a werewolf issue like you know, but there are things here, things that we don't even know about yet. This could be so much more use than you think." If he had a fraction of information on anything, it'd be more than worth it. "Okay, possessions, lets start with that. I don't suppose you have a sure fire way to stop them from happening to a person?"