Maisy, aged seven, constantly insists she has dragons living in her mouth, much to her older brother Jack’s annoyance!
Little do they realise how close to the truth Maisy actually is, and the adventures they are about to encounter.
Before long, they meet Nertitia and Emeraldo, two dragons who desperately need their help to conquer the evil Thundor, who has already succeeded in destroying part of their beautiful kingdom beyond the clouds. As well as destroying Ionia, Thundor has also stolen the enchanted Rainbow Jewels and has imprisoned the King and Queen of Ionia.
Will Jack and Maisy have the courage to help them? Can they stop Thundor from destroying the whole of Ionia? And will they be able to withstand the perilous voyage they are about to face? Only time will tell…