R.L. Stine 
Darkest Dawn [EPUB ebook] 

When you can’t sleep, there’s always NIGHTS. The Night People are safe at last. After all the ugly pranks and vicious murders, things have finally returned to normal. The friends who are left are trying to forget and move on, taking comfort by meeting up late-night at their old hang out, Nights. It was the ancient spirit of Angelica Fear that caused all the trouble. And now she’s been destroyed once and for all. Burned in a fire. But if it’s true that the horror is dead, what did Angelica mean when her voice cried out from the flames?… "The Evil Lives!"