Isabel Deran only wants to practice archery with the castle guards, and that is the last thing expected from an elegant Princess. Living in the shadow of her late sister, Victoria, she is next in line to receive the royal armlet that is embedded with four stones: an opal, a sapphire, an amber, and a ruby. It is a revered family heirloom with the power of the elements passed down from mother to daughter.
However, an evil, once thought to be sealed away in a prison in which time does not pass, breaks free with an army that swarms the castle and wrecks havoc over the kingdom in search for the magical armlet. They are known as the Aeonians. When they kidnap Isabel and place their hands on it, the precious stones vanish.
Isabel is now trapped in a race against time to locate her stones of power with the head of the Aeonian army, Bence Brechenhad, stalking her like a shadow. With the help of her trusty weapon, the sai, she fights her way through seemingly impossible trials and fearsome monsters in order to restore peace in her kingdom.