Bebe Nicholson “The Immortalists” by Chloe Benjamin (Jan 2018 on Amazon, with 892 reviews, New York Times Bestseller) is the book I mentioned in previous comment. >>A fortune teller told four kids the date they would die. When the first one died, it terrified the others! Very well written, I stood there speed reading it in the library, until I got to the end. I didn’t go straight to the end to find the ending. Quite a scary story, about the power of suggestion on vulnerable minds.