Lyra Belacqua, later known as Lyra Silvertongue, is the heroine of Philip Pullman's trilogy His Dark Materials. In His Dark Materials Lyra is a young girl who inhabits a universe parallel to our own. Brought up in the cloistered world of Jordan College, Oxford, she finds herself embroiled in a cosmic war between Lord Asriel on one side, and a deity figure known as The Authority and his Regent, Metatron, on the other. Lyra also features prominently in the subsequent trilogy The Book of Dust.