Don't Stay in the Last Room

Before my graduation trip, my grandmother said to me solemnly, "Sweetheart, whatever you do, don't stay in the last room at night." I was confused. "What last room?" My grandmother's body suddenly convulsed, and her face twisted into a grimace. The whites of her eyes filled her sockets. "You can't stay there!" 1 "Grandma, what's wrong?" I quickly shook her as hard as I could. As far as I could remember, my grandmother had always been kind and gentle. She'd never acted like this before. I shook her for a full half-minute before she came to. "I'm fine. Just promise you'll do as I say. Grandma would never lie to you." Her expression had never looked so awful. "All right..."