The Follower — Kate Doughty

Kate Doughty's The Follower is a spine-tingling YA thriller based on a true story.
 
Instagram-famous triplets Cecily, Amber, and Rudy -- the children of home renovation superstars -- are ready for a perfect summer. They've just moved onto the site of their parents' latest renovation project when they begin to receive spine-tingling messages from someone called The Follower. It soon becomes clear that this anonymous threat is more than a simple Internet troll, and they can't wait to shatter the Cole family's perfect veneer and take back what's theirs.
 
The Follower examines the implications of what it is to be watched in the era of social-media fame -- as well as the lies we tell and the lengths we'll go to uphold a perfect image, when our lives depend on it.
 
“Teens love a mystery, and this one is definitely a page-turner.” -- School Library Journal