The_Undead_Hordes_of_Kan-Gul_-_Jon_F._Merz

Ninjas and zombies! A young ninja in a fantastic land of dreams and nightmares must face an army of zombies to save a beautiful sorceress.

In the fog-enshrouded peaks of the island nation of Nehan, Ran, a newly-minted shadow warrior is set loose on a musha shugyo, a wandering quest, whereby he must travel alone and hone his skills. Journeying aboard a merchant vessel, Ran hears tales of a mysterious lord believed to have the dead for his servants.

Soon these tales prove all too real as Ran comes to the aid of Jysal, a beautiful sorceress, whose undeveloped power gives her the ability to heal a land -- or destroy it. But the Lord Kan-Gul also covets Jysal's power. And when Kan-Gul sends a army of the undead to take Jysal by force, Ran is faced with the ultimate warrior's choice: save himself, or face down a horde of enemies that cannot be killed for the simple reason that they are already dead!

Book 1 in a new series, the Shadow Warrior saga.