Adrianne Geffel was a genius. Praised as the "Geyser of Grand Street" and the "Queen of Bleak Chic," she was a one-of-a-kind artist, a pianist and composer with a rare neurological condition that enabled her to make music that was nothing less than pure, unmediated emotional expression. She and her sensibility are now fully integrated into the cultural lexicon; her music has been portrayed, represented, and appropriated endlessly in popular culture. But what do we really know about her? Despite her renown, Adrianne Geffel vanished from public life, and her whereabouts remain a mystery to this day.