The Book of Air : Volume Four of the Dragon Quartet

The thrilling conclusion to the adventures of the four elemental dragons and their human guides, the fourth and final book of the history-spanning Dragon Quartet fantasy series. In the fourth novel of this popular tetralogy, Marjorie B. Kellogg brings together the four elemental dragons and their human companions in a desperate quest to free Air from her as-yet-undiscovered prison—and stop Fire before his devastating reign destroys the world. Earth, Water and their guides travel into the future to find Air and her guide and end Fire's rule