Broken Date — R.L. Stine

A DATE WITH DEATH

Jamie and Tom are in love. They've gone steady
since junior high, and are planning to graduate
from high school and attend college together.
Them, of course, they'll marry. Everything is perfect
until Tom breaks a date-and all the horror begins.

Suddenly her perfectly planned dream has
become a nightmare. She MUST talk to him. But
what has happened to Tom? To Jamie's horror, the
boy she loves is stalking her, calling her, threatening
her. Tom can't afford to let her live. And there's
nowhere she can hide....