Running. Not just retreating from an enemy, but retreating from the unknown, running for their lives against... what?

Bugs?

When Jo screams, Rachel nearly collides with her on the path, not registering the direction of the water, what Jo wants, what she means. But she knows almost any insect will stay in the air if you jump into water.

She only hopes it isn't a stream, vaulting over a fallen log and running for the sound, roaring louder and louder as they approach.