The captain fires a bolt from his crossbow. It whizzes past one of the fungi and vanishes into the darkness.

He backs up further. They've got maybe a hundred more feet of this tunnel before there's a crossroads.

One guard pulls marbles from a pouch and flings them down the tunnel. The other two fire their crossbows. One bolt slices into a fungus.

They double back with the captain.

The fungi lumber forward. Their feelers and roots roll over the marbles. They slow down and don't make it as far as they did previously.

Crossbow and retreat. If she could Splash she wouldn't need to worry about bolts, but... "I can Splash them but only if they can run to me."

The bolt hit cleanly, at least. She's either better than she thought or she's being very lucky. Or both.

Captain Paras backs up and reloads his crossbow. This is becoming routine.

The guards back up and reload with him. Routine is good! Routine means they win. Slowly.

The fungi haven't run out of stamina yet. They slowly make their way around the marbles.

Back and reload. She's no different from the others. 

"Losing them is bad, we need that sewers clear? We could split off at the crossroads."

"We can keep ahead of them but not while reloading or shooting. Let's try to box them in to a smaller tunnel at the crossroads with marbles. They'll be forced to move slower."

He moves further back and fires his crossbow. It's a solid hit.

Sounds like a plan.

The guards move back with the captain and fire bolts from crossbows. One impacts the injured fungus.

The fungus doesn't like that. It bounds after the guards. Its fellows follow it.

What a good plan. She nods to Lhín, who flies off to get the tunnels set up with marbles. In the meantime... move back and shoot. Hit. Isn't this great.

It's definitely routine now. Move. Reload.

The guard follow their leader. Move. Reload.

The fungi follow the guard.

Back up. Reload. Crossbows don't need her to be able to pull hard like actual bows would, but the lack of speed is definitely a drawback.

They have arrived at the crossroads.

The captain rounds a corner into a smaller tunnel and rolls out some marbles behind Lhín's deployment.

The guard will wait for Tencednil before proceeding. She's fallen a little behind.

The fungi have no reason to wait.

Back behind the line where the marbles will be! She can drop some behind the Captain's, and Lhín can wait to cover up a missing spot once all the guards are through.

The guards run down the hallway. Two of them lay out marbles behind themselves as they move.

Captain Paras sends a bolt flying into a fungus. He reloads instead of moving further back.

Two of the fungi bound forward into the small tunnel. One slips on the marbles and falls to the ground.

The fungi are close enough to be in clear light, close enough to be dangerously near melee... and, most importantly for her, close enough to be in Acid Splash range. A splash on the one which is still upright-ish, and substantially more crossbow bolt-stabbed. Nice clean hit!

Then she moves back, of course. "Lhín can carry a spare lantern to keep them lit!"