She thinks they're grasping at straws here, trying to fix whatever is happening that makes corpses swarm Yancai from the waters, but it's better than doing nothing.

They can try, and if it fails to work they can go back to escorting civilians out of the grasp of zombies.

But first, a detour. There is something glittering under the water that catches her attention, a piece of glass? A mirror? This world and magical mirrors, honestly...

"What is that?" she asks, and because it feels closer within reach than the sleeping bodies do, she sticks her hand inside the water.

Which is a terrible idea.