Agent Twain works as an assassin in the Department of Mary Sues, LotR Division. Starting in 2004, she has worked with Agent Jeanlily. She was originally human, but in 2004 had to become an elf semi-permanently (and much to her displeasure) due to a glitch in a badfic. By 2010, she had recovered her normal form. Twain has no known first name.