[She's right about water, and Waver actually feels a little foolish for not thinking of that first. After all, wasn't flowing water the method he used to fin Caster?

He follows Mai's eyeline to the stream, briefly trying to determine which mountain it might come from. Foolish, but he wants an idea of how much steeper the terrain might get in case the only way forward is, indeed, up.]

Probably. It'd be nice to know if there's any sudden drops along the stream's path though. I don't think anyone's up for water fall diving.