The spring refuses to be owned. So does its queen.

Queen Avelisse of the First Spring has survived assassins, insulting alliances, and every man who mistook her crown for permission. But when Lucianea's sacred waters turn deathly cold, she knows something ancient is poisoning the land.

King Renaud of Cadian Forest arrives at her border with soldiers, accusations, and roots already blackening beneath his kingdom. He believes her spring is killing his forest. She believes his roots have trespassed long enough.

Then their magic touches.

Water rises. Roots awaken. The corruption recoils.

Forced into an alliance neither court trusts, Avelisse and Renaud must descend beneath the oldest tree, uncover a betrayal growing inside the crown, and decide whether two sovereigns can join their power without surrendering themselves.

The land does not want conquest. It wants a vow, freely chosen.

But the closer root and water entwine, the harder it becomes to separate duty from desire. And if they cannot trust one another before the rot consumes both kingdoms, love will not be the only thing buried.

A Vow of Root & Water is a lush adult fantasy romance featuring rival rulers, reluctant allies, dangerous nature magic, sharp banter, political betrayal, sensual intimacy, and a complete happily-ever-after.