B. Traven (1882-1969) was a pen name of one of the most enigmatic writers of the twentieth century. The life and work of the author, whose other aliases include Hal Croves, Traven Torsvan, and Ret Marut, has been called "the greatest literary mystery of the twentieth century." Of German descent and Mexican nationality, he has sold more than thirty million books, in more than thirty languages. Films of his work include The Treasure of the Sierra Madre, which won three Oscars; Macario, the first Mexican film to be nominated for an Oscar; and The Death Ship, a cult classic in Germany.