“Precisely.”

Pal rests his chin on his knees, watching her examine the stone. “No, not quite. It’s a ward. Usually I would draw it directly on the ground, but that’s a bit difficult to do on a forest floor.” He picks up another one, lightly tracing the symbol with his fingertip. “Wards are used to create protective barriers. I can make one that blocks people from entering a room, or that alerts me to someone’s presence. These in particular,” he taps the stone, “were meant to keep any revenants within the circle once they entered it.”