When the Great Kingdom was formed, the Library was transformed into the Labyrinth of Thaumaturgy and Melanie Bush became the Technomancer. (PROSE: Millennial Rites) In the Labyrinth she learned of this book, considered to be one of the most malevolent books in the galaxy. Mel later discovered that had a copy in his TARDIS library. (PROSE: The Quantum Archangel)