When Mio sneaks the family's katana - a priceless ancestral sword - from her parents' attic, she just wants to spice up a costume. But the katana is much more than a dusty antique. Awakening the power within the sword unleashes a terrible, ancient evil onto the streets of unsuspecting modern-day London. But it also releases Shinobu, a fearless warrior boy, from the depths of time.
Sixteen-year-old Suzume is a shadow weaver, trained in the magical art of illusion. She can be anyone she wants to - except herself. Is she the girl of noble birth, trapped by the tyranny of her mother’s new husband, Lord Terayama? A lowly drudge scraping a living in the ashes of Terayama’s kitchens? Or Yue, the most beautiful courtesan in the Moonlit Land? Even Suzume is no longer sure of her true identity. But she is determined to steal the heart of the Moon Prince and exact revenge on her stepfather.