Water! Series by Gael Baudino

A diplomatic mission arrives on the shores of the Three Kingdoms just when many of the inhabitants are eager for change. Prince Aied yearns to embrace the future against his father's wishes, while Sari, an old Naian woman, searches for her past and the goddess she left behind. All their lives will be forever changed. The first book in an ambitious new fantasy series.

Plagued by 300 years of drought, the Three Kingdoms are dying. Many hope to find new life with the arrival of diplomats from the Righteous States of America. Meanwhile, the rejuvenated Sari embarks on a mission for the Goddess. This is the sequel to O Greenest Branch.

The compelling third book in the Water trilogy concludes the interwoven stories of Sari, herbalist and woman of the Goddess, on her journey of self-discovery, and the diplomats striving the save their kingdom from the invasion of the powerful Three Kingdoms.