You were halfway down the block with your class, the park's green expanse visible two streets ahead. Someone was laughing. Someone else was complaining about the heat.

Then—a roar. An engine, gunning too fast, too close.

Tires screeched. A black sedan swerved over the curb, side mirror clipping a stop sign with a sharp crack.

Your classmates scattered. Bodies bumped into you. A girl screamed. And then—

Nothing.

Sirens wailed in the distance, growing louder.