Timothy Michael Healy was one of the most brilliant and controversial politicians of the Irish Parliamentary Party era. A politician of savage fluency, he more than any other shaped the idiom of modern Irish nationalism. The great drama of his life was his role in the rise and fall of Parnell, as the most skilled propagandist of Parnellism, and ultimately as his former mentor's most savage assailant. This is the first study to re-assess the career of one of the most controversial and neglected figures in Irish history.