Darkside. The Rock Bay Mysteries, #4

"So just know, Mikey.  Even though I tend to believe you, I'll never make that mistake again." Shortly after Mikey Franco moves with his mother to Rock Bay for a fresh start, high-school superstar Madison Morris takes a shine to him and, to Mikey's surprise and delight, becomes his girlfriend. But when Maddie mysteriously disappears while walking home from school, his world is turned upside-down. The police, learning that he was the last person to have seen her and having discovered a secret that he has tried to keep hidden, begin to question him.
When she is later found dead, they suspect him of murder. As Mikey investigates to save himself and learn what happened to Maddie, he discovers that his girlfriend had secrets of her own. And that one of them may have gotten her killed. Perfect for fans of Harlan Coben and James Patterson, Darkside is a gripping small-town mystery full of twists and turns that will leave you questioning everything you know about someone.
Or think you do. Darkside is Book 4 in the Rock Bay Mystery series.