Falling into Rarohenga

It seems like an ordinary day when Tui and Kae, fourteen-year-old twins, get home from school – until they find their mother, Maia, has disappeared and a swirling vortex has opened up in her room. They are sucked into this portal and dragged down to Rarohenga, the Māori Underworld, a shadowy place of infinite dark levels, changing landscapes and untrustworthy characters. Maia has been kidnapped by their estranged father, Tema, enchanted to forget who she really is and hidden somewhere here....