Ancient Japanese gods and monsters are unleashed on modern-day London in this first book of an epic trilogy from acclaimed fantasy writer Zo Marriott. 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 London. But it...