Paperback book - Creep by Eireann Corrigan

If you like thrillers you will definetly like this book! Heres a brief overview/the back of the book: Olivia is curious about the people moving into 16 Olcott places. the last family there moved out in the dead of night, and the new family, the Donahues, has no idea why. Olivia becomes fast friends with Janie Donahue...so she's there at the house when the first of the letters arrives. The letter: "I am the sentry of Glennon Heights. Long ago, I claimed 16 Olclott Place as leuy for my guardianship. The wall will not tolerate your trespass. The ceilings will bleed, and the window will shatter. If you do not cease your intrusion, the rooms will soon smell of corpse." Who is the Sentry? And why does the Sentry want the Donahues out of the house badly enough to kill? As Olivia and Janie explore the house, they find a number of sinister secrets. As soon as they explore their town, they find a hidden history that the sentry wants to remain hidden forever.