Nellie and her new friends must complete a dangerous mission or stay on the pre-historic continent forever.
Imagine travelling back through time to the ancient supercontinent of Gondwana where extinct animals still exist and mystical spirits roam the forests. That is what happens to eleven-year-old Nellie Russell. She rescues New Zealanders, nine-year-old Charli and her half-brother Hamish, who are trapped in a cave. Together they must complete a dangerous mission, pass a mysterious Big Test and find their way to the centre of Gondwana before sunset or they will be trapped on the pre-historic continent forever. Will they all make it back to the centre in time?
