The Book of Secrets is the sixth studio album by Loreena McKennitt, released in 1997. It reached #17 on the Billboard 200. The lead single of the album, "The Mummers' Dance," remixed by DNA, was released during the winter of 1997, 98, and peaked at #18 on the Billboard Hot 100, and #17 on the Modern Rock Tracks chart. The album is certified double-platinum in the United States. It has now sold more than four million copies worldwide.