The shadows of dreams

Lately Alyssa has been having a lot of weird dreams, but when she wakes up she can't remember a single detail. All she knows is that the dreams are all pretty similar and the people in it are the same. But the dreams are starting to get to Alyssa and they are interfering with her life, she can't concentrate in school, experiences headaches and starts hallucinating and seeing flashbacks from scenes she doesn't remember. When she researches more about about these "Chain dreams" and the symptoms, she finds that every 2 decades people have been experiencing the same things. They have all suffered a tragic death, have mysteriously disappeared or have never been seen again...

Copyright stuff is in the book.