In a remote, heavily wooded area near the Berkshires of Massachusetts, Rachel Lorant died on her birthday. But she didn't die alone. That night, her four sorority sisters make a solemn, trembling pledge. They will never reveal what has just happened in those woods - ever. Instead, they will take their terrible secret to their graves...Now, ten years later, their secret is coming back to haunt them as each receives a card in the mail from Rachel: "Happy Birthday to Me. xoxo R." It's clear that someone knows what happened that night. Someone is stalking them and sending mysterious, chilling gifts that only they can understand - deadly warnings of what is to come. For the sins of the past have come back with a vengeance, and a killer will see that they all pay in blood.
