Oksa Pollock: The Heart of Two Worlds, Paperback/Anne Plichota

Oksa's heart-stopping adventures continue, as she journeys to her enchanted homeland. Earthquakes, volcanic eruptions, torrential rain... The Earth is in turmoil. Fleeing a flooded London, Oksa and the rest of the Pollock family set off in search of the Entrance Portal of Edefia, their magical home. It is their only chance of restoring the Earth's balance.