'The story is set in a Queensland country town, and a nearby hidden valley where time has stood still and Australian megafauna roam. The story contains ghosts, time travel, magic, and many adventures with these ancient animals. There are dinosaurs; like the Muttaburrasauras, and the winged Pterosauradon that the children learn to ride. A deadly fire dragon adds further danger to the mix, along with a wicked ex-member of the magical group, The Guardians of Nida that cares for the valley. Grundymere wants to take control of the valley to exploit it for financial gain. He starts out trying to do so by peaceful means, but in the end will stop at nothing - even threatening the life anyone who stands in his way. The story explores the personal growth of the lead character, headstrong and confident, fourteen-year-old, Meg Sealy, as she learns of her destiny; to assume her late grandmother's role and become the next leader of The Guardians of Nida. Along with her friends, and cousin Jaiden, Meg is thrust into an unknown and dangerous world where she becomes prime target for Grundymere, and her life is threatened on many occasions. The story follows developing relationships between them, and other members of the Guardians, as they fight to save the animals and the valley.' (Publication summary)