Book excerpt: When the Irish nationalist Michael Collins signed the Anglo-Irish Treaty in December 1921, he observed to Lord Birkenhead that he may have signed his own death warrant. In August 1922 that prophecy came true when Collins was ambushed, shot and killed by a compatriot, but his vision and legacy lived on. Tim Pat Coogan's biography presents the life of a man whose idealistic vigor and determination were matched by his political realism and organizational abilities. This is the classic biography of the man who created modern Ireland.