"Water!" She exclaims, nearing toward the sound. The ground beneath her becomes weak, and Hermione finds herself sliding down a steep incline. Tom falls with her, whether tugged down by her own grasping arms or simply caught in the shifting of earth. They land in the aforementioned water with a loud splash. Hermione launches herself into the air, breathing out with a gasp. (She’s reminded of her plunge in the Black Lake.)