"Oh, no…! Simon, turn the car around!"

"What—?" Simon turned his head to give Sara a startled glance from where he sat behind the wheel of his car on Saturday evening, driving them both to the party.

She clutched at the arm of his black evening jacket. "Turn the car around —now—and get us out of here!" she repeated fiercely as she released his arm to stare up in horror at the brightly lit house at the end of the short gravel driveway.

There was already a car in front of them, and one ...