DnD inspired: The tent[nocensor] monster! A mimic that conceals in the shape of a tent to lure adventurers to get inside to rest. When they get sleepy, the tent monster produces acids that digest the unwary traveler.

Saria forest... I would say some gnome inspired sort of creature. Some danger spoken about in the village but that nobody really believes. It happens they're not big and tend to hide when humans get close, unless they believe that they may overcome the victim somehow. Since this is the start, I would think she's low level, so that would work in the way of lone human not powerful looking and with their numbers the creatures think it's a suitable target. Or something like that.