Gates of Stone by Angus Macallan

In a world of blood and magic, a powerful epic fantasy begins...

AN EMPEROR’S DAUGHTER WHO WILL NOT BE DENIED
Just before her sixteenth birthday, Princess Katerina is refused her rightful place as heir to the Empire of the Ice-Bear—solely because of her sex. Determined to regain her inheritance, she murders the foreign lord she’s been ordered to marry and embarks on a perilous voyage to the lush, tropical islands of the Laut Besar in search of the vast wealth and power she needs to claim the Empire for herself. 

A PRINCE FORCED TO TAKE A STAND
On a small island kingdom, Prince Arjun’s idyllic life is shattered when a malignant sorcerer invades, slaughters his people and steals the sacred sword of Jun’s ancestors. With his royal father dead and his palace in ruins, Jun reluctantly tracks the sorcerer and the magical blade far across the pirate-infested waters of the Laut Besar. 

A SORCERER SEEKING TO DESTROY THE WORLD
Long ago the powerful relics known as the Seven Keys were used to safely lock away the terrifying evils of the Seven Hells. With Jun’s ancient sword in his grasp, the sorcerer Mangku has claimed the first Key, and begun his mission to unleash catastrophe upon the land. 

As the destinies of these three entwine in the lawless islands of the Laut Besar, the fate of humanity hangs in the balance. For if the sorcerer cannot be stopped, the world itself will be unmade…