How do you kill an Immortal? Huon is weak. A surgecaller who escaped into the wilds, his only goal was to survive. Now he is Oathbound, forced to fight in an arena, forced to become stronger than he’d thought possible. As he realises he can become strong, the need for revenge fills his heart, and a new goal forms in his mind. But his goal is impossible: kill the dragon rider, the Immortal of Fire. To succeed, he’ll have to do more than just survive—he’ll have to advance beyond anything the realm has ever seen. In the spirit of progression fantasies like Cradle and Mage Errant, enter a realm with magical beasts, where surgecallers can cultivate essence to strengthen their weapons, enhance their bodies and wield elemental magic.

Huon has reached the rank of Squire, taking the first step on his road to power, but he’s still far behind where he needs to be. Oathless once more, he ventures out of the Everlasting King’s realm with Liona, hoping to find challenges to spur on their advancement. But freedom isn’t easy to keep, and their enemies pursue them even into new lands. In the spirit of progression fantasies like Cradle and Mage Errant, enter a realm with magical beasts, where surgecallers can cultivate essence to strengthen their weapons, enhance their bodies and wield elemental magic.

Huon doesn't want to be a murderer. He has no choice. Forced to become an Honourbound soldier in the Everlasting King's army, Huon struggles to do what is right when his actions are completely out of his control. He attained Knighthood, and is the strongest he's ever been, but his advancement means nothing while oathbound. But oaths have been broken before—his own father's—and even while he's forced to fight for a cause he doesn't believe in, he tries to discover a way out. A way to be free once more, to continue toward his impossible goal. In the spirit of progression fantasies like Cradle and Mage Errant, enter a realm with magical beasts, where surgecallers can cultivate essence to strengthen their weapons, enhance their bodies and wield elemental magic.

To flee the Everlasting King, Huon, Liona and Gale sail away from the Harolan continent. They hope they'll find safety, somewhere they can advance without fearing for their lives. But no one has succusfully made such a journey in over a thousand years. They'll soon find out why.

There are still two more rounds in the Tournament of Grace, two more opportunities for Huon and the crew of the Strong Wind to obtain boons from the Low and High Celestials of Taloniar. Huon has attained the rank of Champion faster than he ever imagined he would, but after what he learned from the Devil of the West about the Everlasting King, he has a newfound zeal to reach even higher heights. And if he's going to reach them fast enough, he'll have to win the Tournament of Grace. Only the final match isn't what he thought, and someone from his past is eager to see him fail.

Huon has won the Tournament of Grace and received a high boon from each of the four Sentinels of Taloniar, but the gifts he receives won't be enough to protect him from the oncoming threat.

Huon and Liona have reached the rank of Immortal. On the world of Temtoria, they developed abilities long lost to the surgecallers in Harolan and Taloniar. But their journey is far from over. On their return, they must help their friends catch up to their level of strength, while pushing forward in their mission to defeat the Immortal Seven and the Everlasting King.

The Everlasting King has been dealt a blow. But the blow has only brought Huon and those he fights beside to the Everlasting King's attention. Though Huon has reached the rank of Low Celestial faster than he had anticipated while destroying one of the Everlasting King's stockpiles of stolen cores, he fears that his newfound strength won't be enough to protect his friends. As the Everlasting King's fleet prepares to sail for Taloniar, their only hope to prevent full-on war between the two continents is to find and destroy the other stockpiles of cores before the fleet reaches its destination.

Huon has less than one week to save those he cares about most. But in the world of Temtoria, time moves at a different rate, and those days are turned into months. Though Huon has managed to defeat a High Celestial, he still isn't ready to face the Everlasting King. But he has a plan. Reunited with people from his past, he has to teach them all he knows—whether he wants to or not—as when the time comes, they'll only have one chance to defeat their enemy.