Great First Lines: We Have Always Lived in the Castle

My name is Mary Katherine Blackwood. I am eighteen years old, and I live with my sister Constance. I have often thought that with any luck at all I could have been born a werewolf, because the two middle fingers on both hands are the same length, but I have had to be content with what I had. I dislike washing myself, and dogs, and noise. I like my sister Constance, and Richard Plantagenet, and Amanita phalloides, the death-cup mushroom. Everyone else in my family is dead.

Shirley Jackson, We Have Always Lived in the Castle

Great first lines from a mystery/horror novel that I haven't read in way too long a time.