"The Witch of Pungo -- who supposedly accursed Tidewater farms in the 17th and 18th centuries -- has been cleared of all charges, namely that she was ever a witch. On Monday, 300 years after Grace Sherwood was convicted at a trial that saw her thrown into the Lynnhaven River with her thumbs tied to her feet, Gov. Timothy M. Kaine pardoned her. The rules of the trial were simple: If you floated, you were guilty of being a witch; if you sank, you were cleared. And dead."