What Was Your Scariest Nightmare Ever ?

I used to have this dream every year on the night before my cousin's b-day party when I was little, and ONLY on that night. In it my parents and brother died and the rest of my family left me, dad dies in a motorcycle accident after drinking too much, mom dies from drowning in a sinking ship and my brother gets eaten by 2 t-rex dinosaurs, then the rest of my family is having a party in my cousin's house and they won't let me in and then the house disappears and I'm alone in the street. I guess it was more distressing and sad than scary but I used to dread falling asleep that night terrified that I was gonna have that dream again.