With her Atlantic contract fulfilled after a 15-year stint, Amos signed to Epic in late 2001. In October 2002, Amos released "Scarlet's Walk", another concept album. Described as a "sonic novel", the album explores Amos's alter ego, Scarlet, intertwined with her cross-country concert tour following 9/11. Through the songs, Amos explores such topics as the history of America, American people, Native American history, pornography, masochism, homophobia and misogyny. The album had a strong debut at No. 7 on the Billboard 200. "Scarlet's Walk" is Amos's last album to date to reach certified gold status from the RIAA.