The sky had been threatening all afternoon.

Daisy noticed it while she was packing her books at the end of the last class—thick gray clouds rolling over the school like they owned the place. By the time she stepped outside, the air had that heavy, charged feeling right before a storm. She quickened her pace, hoping she’d make it to the bus stop before it hit.

She didn’t.

The rain came suddenly, as if someone had turned on a giant tap. The first drops were fat and cold, and within seconds, the downpour blurred the parking lot into silver sheets. Students squealed and darted in every direction—some made a run...