ONCE UPON A TIME... when four dragons threaten to bring sickness to villages everywhere, wizards around the world need help to protect their communities. One young warrior sets out to gather each of the dragons' stones, which hold key information about how the dragons move and attack. The warrior will need her skill, bravery, and the knowledge she gains along the way - along with some help from a baby dragon - to succeed on her adventure as she takes on each of the dragons to gather the stones that can bring protection.

Even if all the stones are collected, one more challenge remains: sharing the power of the stones beyond one community so that all can be protected.

In the modern world, our dragon stones - vaccines - may seem nearly as mystical and magical. They've been developed through the hard work, skill and knowledge of doctors and scientists. This tale speaks to the importance of our best protection against the infectious diseases that threaten global health, and those that are yet to come.