Project 17 by Laurie Faria Stolarz

I've had this book in the library for years and never picked up, but now I feel like I'll be able to recommend it to kids wanting to read a mystery. Basically it's Blair Witch Project story. Each chapter is labeled with a kid's name and we hear their story as they visit a local closed mental hospital. Derik, the film's director, is looking to win a contest so he doesn't have to work in his parents' diner. He collects a ragtag team of teenagers to help him film a reality visit to the hospital grounds. It's scary, of course, and love is in the air. There are plenty of laughs, groans, romance, and freaky moments for the reader. It's clear that the six teens are there to help a former resident of the Home, whether they admit it or not.