From the bestselling author of This Book Kills comes a deadly new YA thriller of murder, mystery and mind-blowing twists. Perfect for fans of Holly Jackson and Karen M. McManus.

Seventeen-year-old Kay left her sleepy hometown after the devastating death of her friend, Ivy. But when Kay is forced to come back, she receives an anonymous letter that turns her life upside down.

The letter tells her that there will be a thrill on Tuesday, a wreckage on Wednesday, treachery on Thursday, a fire on Friday, sabotage on Saturday, a stabbing on Sunday - and her murder on Monday. And if Kay can't figure out who is behind the threats, the worst day of the week is about to get deadly...