"Seven Keys to Baldpate" by Earl Derr Biggers is a novel published in 1913. Writer Billy Magee seeks solitude at the remote Baldpate Inn to work on his next novel, expecting complete isolation. Instead, he discovers six other people possess keys to the supposedly empty inn. What follows draws him into a chaotic tangle of secrets involving bribery, violence, and gunfire. This bestselling mystery became a popular stage play and inspired numerous film, radio, and television adaptations over the decades. (This is an automatically generated summary.)