The Knife's Edge - kindle ebook by Matthew Wolf

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In the Second Age, Daerval is a world on the brink of ruin. Chaos and corruption rides on the seven winds—from the sprawling cities, to the vast, nearly uninhabited wilds, the lands churn in turmoil as the Twelve Kingdoms vie for power and dominion. Nine of the twelve, called the Great Kingdoms, are Cities as ancient as time, bearing the sigil of old, one of the nine elements—wind, water, fire, flesh, stone, tree, metal, moon and sun. Yet the Nine struggle to hold their dominion as three new kingdoms rise to power. Using deception, they align themselves with a mysterious power, a dark and nameless city that rises from the ashes of war.

Thrones disappear within the night and the elemental beings, Dryads, sprites and giants that once flourished throughout the lands, vanish almost entirely. Bountiful kingdoms like Menari and Tegard are left desolate, burning in the high sun. Men are twisted, turned to shells of their former selves, as others wander the lands. In a world torn asunder, where would you find hope?

When legends come to life the world trembles from a single name.  Ronin.  Once heroes from a different age, they wield elemental powers ...wind, water, fire, stone, forest, sun, moon, flesh and metal.

At the same time, a young man discovers his best friend with a sword in her stomach and dark wings sprouting from her back.  Guards rush on to the scene, accuse him of the act, and he is forced to flee.

In a world without his memories, Gray must find his way amid legends and darkness, as he wrestles with an elemental power inside himself.

A power all too similar to the infamous Ronin.