From the dust returned - Ray Bradbury

IN THE ATTIC WHERE THE RAIN TOUCHED THE ROOF SOFTLY ON SPRING DAYS AND WHERE YOU COULD FEEL THE MANTLE OF SNOW OUTSIDE, A FEW INCHES AWAY, ON DECEMBER NIGHTS, A THOUSAND-TIME GREAT GRANDMERE EXISTED. SHE DID NOT LIVE, NOR WAS SHE ETERNALLY DEAD, SHE...EXISTED.
She is the grandmother of the Elliott family, which includes mind-readers, vampires and many others...maybe. In a strange old house, they gradually come together, mixing their arcane skills and life-styles, falling in and out of love and changing the world around them forever.
You have never seen their like before.