Yeah. Um, there's a really dangerous magic in my world. Like- can tear the world apart kind of magic. There's a scroll that depicts the incantations that can control the aforementioned magic.

[He's being deliberately vague. He doesn't want to put Cass into a tricky position if she comes here. He knows from Rapunzel they can come from any point in time, and he categorically doesn't want to nuke any chance of pace Cass might find here if she arrives sans the moonstone. ]

I'm the only one that can translate it. It took me months, it's deeply encrypted. I've been trying to help them figure out how to get a hold on everything before it all goes... real bad.