How did one woman go from being Mark Twain's beloved secretary who ran his life to a someone he was determined to destroy? In Lynn Cullen's Twain's End, she reimagines the tangled relationships between Twain, Isabel V. Lyon, and Ralph Ashcroft (his former secretary and her husband), as well as the "little-known love triangle" between Helen Keller, her teacher Anne Sullivan Macy, and Anne's husband, John Macy.
