The Hollow Blade by Wolfe Locke

The cowards never tried and the weak died along the way.
-Elder Valdanes, the Kata Excerpts 14.3

Valdanes. The elite sword clan that serve as the fist of the Kingdom
From the age of four they are taught to be three things:
Servants, Soldiers, Vassals.
At the cadet rank of Iron, Tristan Valdanes is no different. His days are spent in the classroom and his nights on the training grounds, always looking to hone the special sword technique of the Valdanes Clan.
Everything he's ever known will be put to the test when a portal to another world opens up on the Academy grounds, sealing them off from the rest of the world.

As duty is put to the test and loyalties are challenged, will they overcome or will they be corrupted?

Buy a copy of "The Hollow Blade" and find out.

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