Waltzing on a Dancer's Grave — Kristine Kathryn Rusch

When Greta arrives at Grayson Place with her ballet company, her memories haunt her. Karl Grayson died there twenty years earlier, but she returns to the mansion for the company's fiftieth-anniversary gala anyway, just as he wished.

Karl's death freed her once. Or did it?

“Like early Ray Bradbury, Rusch has the ability to turn on a universal dark.”
-- The Times (London)