With a head on approach, but you turn out to not be in good shape for it

You stalk up the herm she-devils with resolve.

"Excuse me, you lot are sullying my pool."

They turn to face you, and one snorts derisively.

"We were only hoping for a bath, can't you spare us an hour of use?"

"No," you grit out as you glare, "If you want to soak so much, find somewhere else to scrub off first. Why are you even here?"

"Well dearly, since you're being so hospitable," the demons stand and start to circle around you, "some fool warlock tried to open a portal, and abandoned it to get smeared up.

By happy accident, it was just complete enough to let a group of us fiends through temporarily. I saw the opportunity, and though it would be a nice chance for the Omnibus Sisterhood to have a little vacation."

The demoness serving as the groups spokesperson grins and reaches a hand to you, "And what's a vacation without sampling the local wares?"

You lash out around you with a mass of water... that takes up nearly all of what was left in your magic reservoir.

Shit.

This isn't fair, you'd shouldn't have needed to restore your health and mana and water stores. The players were gone for the night, nothing hostile should be in these forests, how were you supposed to know that leaving that warlock's junk behind would let a backdoor to Hell be opened?

A slimy claw grabs your shoulder.

"Just let it happen quietly, cutie, and you might just manage to enjoy yourself."