Red Dead Redemption - Undead Nightmare

Marston returns home on a stormy night with an uneasy feeling he can't quite put his finger on. John then inquires about Uncle's whereabouts, but Abigail was under the impression that John and Uncle had been together. She tries to assuage John's apprehension by making light of the situation and reminding John that Uncle can take care of himself. This does not, however, set John's mind at ease, and the family has dinner without Uncle. After supper, John asks Jack about the book he's been reading. According to Jack, it's a book about monsters and he begins to relate a story of the ancient Aztecs and a plague-causing curse. Abigail dismisses it as nonsense, and everyone goes to bed. Later that night, when the moon is full, John and Abigail are awoken by Uncle coming into their bedroom. Uncle is covered in blood, sneering and growling. =