From the description:
"Two years ago, Sara's husband left for the gym one morning...and never came back. His car was found. He wasn't. Unbelievably, the police report said, "No foul play suspected." There were a few unreliable sightings over the following months, but little else.
Now, on the last day before summer break, her three children have gone missing from their schools, all at the same time.
And the note under her windshield wiper asks one foreboding question: Are you ready to play the game?"
4.1 stars from 156 reader reviews, of those 9 were negative (1 or 2 stars). 236 pages. This is part of the Kindle Owners Lending Library, so Prime members can read for free.