[Scott leans in to get a closer look at the pages, setting aside his prior freak out in lieu of taking in Dipper's explanation. He puts his hand to his muzzle and considers it all for a moment.]

Y'know.. normally, I wouldn't! Magic and monsters? It sounds pretty far-fetched! ...Says.. the talking dog.

[He shakes his head.]

But that's kinda why I'm inclined to believe you! You're taking this whole thing shockingly well! So I can't be the weirdest thing you've seen, at least...

Besides, what've you got to gain from a lie like that? Aside from trying to one-up me in the 'Shocking Secrets' category!

[He's gotta be telling the truth, but really..? Gnomes and mermaids? He might have to see that for himself.]