The pebble reveals the pool to be about waist deep, slime coats the bottom and promises to make finding purchase difficult.
No encounters right here but traversing the waters to go deeper into the cavern reveals that the floor beneath the waters is extremely slick, requiring DC 15 Acrobatics checks to remain standing. Future reference for if you have an encounter deeper in the cavern.
Crossing the waters and delving further forces you to cross the waters a second time. The main tunnel continues deeper, the pool occupying the left side, shortly coming to another side tunnel on your right.
"Well, at least it isn't the waters of the swamp," Rishana murmurs as the group is forced to wade in and out of the pool as they continue delving into the cavern. "Less likely to get sick or an infected wound," she nods.
When the group comes to another split in the path she glances back over her shoulder and then towards the side tunnel. "I think checking this side tunnel first would be best."
The side passage continued onward for a short distance before itself splitting into a natural T-intersection, the two branches curving away so that, without venturing further, nothing can been seen down them.
"Wonderful," Rishana sighs. "If we press on, I would vote for the left passageway. Otherwise, maybe returning to the main tunnel for now would be wiser. We don't want to wander too far off course."
"I guess this could go anywhere in the hills," says Leo with a slight frown. "How about we just make sure nothing is gonna come running out from behind us if a fight breaks out? Once we've secured our flank, we move on."
The party advanced to the T-intersection, single-file due to the width of the tunnel. Down the right could be seen an opening to a small cavern, from which came the distinctive hiss of a giant spider. The left passage continued onward to another juncture of it's own, two more narrow tunnels branching off.
"Not that I'm itching for a fight but the more creatures we leave at our backs, the worse it might be for us should they decide to come hunting after all," Rishana says grimly.
"I don't particularly care. If you wish to put the beast down, then do it, rather than standing here discussing it. We're not going to accomplish anything if we have to stop and discuss what we're going to do next every single time we find a crossroads."
Rishana nods. "Daichi has a point. Let's be done with it, then." As the two brothers prepare themselves for battle Rishana does the same, drawing and readying her longbow.
Readied Action:
Once the brothers make their attack or the spider advances, Rishana lets fly with an arrow at the oversized arachnid!
Derric prepared himself in case the spider advanced.
He is now readied against the spider advancing. Pretty much, if the spider approaches him or tries to get by him, the spider's movement will be interrupted and Derric gets a free attack against it.
Kiko just hung back for now, though she did draw her sling and loaded it. There was very little she could do against creatures like the spider and she'd rather save more powerful things for when they met the rest of the undead.