Hold Tight by Harlan Coben (Paperback)

“Tia and Mike never thought they would spy on their kids. But their sixteen-year-old son, Adam, has been unusually distant lately, after the suicide of his classmate. So they install a sophisticated spy program on Adam’s computer. Within days, they are jolted by a cryptic message: ‘Just stay quiet and all safe’.
Meanwhile, on an online memorial for the dead boy, there is a photo that appears to have been taken on the night of his death. It looks like Adam, but when Adam goes missing, it becomes clear that something deeper, and more sinister, is going on – something that could tear the family apart.”

*Please note: The first image serves as a representation, while the second to fourth images show the physical book itself.