Burning, The (Fear Street Saga #3) by R.L. Stine - Vintage Paperback

The end...and the beginning. 

Simon Fear thought changing his name would stop the evil. He was wrong—dead wrong. After generations of unspeakable horror, it is up to Daniel and Nora, brought together by their fateful love, to unite the feuding families. But is their forbidden love strong enough to withstand such awesome evil?Poor Nora—desperate to tell the truth and bury the family curse…before it buries her.