Seth is an aspiring wizard from the Pompo Hills region. Like all wizards, he is one of the "infected," a select group of living beings who survived their encounter with the Nemeses: mysterious creatures from the sky that contaminate and decimate everything they touch. Seth's apparent immunity has led him to go on the offensive and attempt to fight these Nemeses. But more than that, Seth is set to embark on a quest that goes beyond hunting monsters. Alongside his friends and allies, he will travel the world in search of the Radiant—the alleged birthplace of the Nemeses—while trying to stay a step ahead of the dreaded Inquisition.

Slowly learning to control his powers with the help of his master Yaga, Seth brings Doc and Mélie along to Rumble Town, one of the last bastions of the industrial era. Their mission: to capture a Nemesis alive! Information gathered by Doc—researcher, scavenger, and scaredy-cat—suggests the presence of a nest somewhere on the island. But the Inquisition rules the people of Rumble Town with an iron fist, and doesn't look kindly on the arrival of three wizards. Will Seth and his friends be able to escape the Inquisition's grasp?

Fighting rages in Rumble Town, as its leaders turn on their own people. Seth and his wizard friends unite to combat the Inquisition, but they soon have to face a new enemy as well: the Nemesis tamer Hameline. As she releases her fury and the chaos mounts, the town's inhabitants prepare for the worst. Seth and his companions will have to separate friend from foe as they attempt to save Rumble Town from total destruction...

The final phase of the battle in Rumble Town is underway. While the wizards dig deep to keep the Nemesis tamer Hameline in check, Seth himself is kept away from the fight by someone hiding under an Inquisitor's hood. Who is he, and what does he want from Seth? The line between ally and enemy is about to become thinner than ever, as Seth is shaken to his core. Will he pull himself together in time to save the island from collapse?

After escaping the devastation at Rumble Town, Seth, Doc, and Mélie are back at the Artemis Institute. Meanwhile, Seth learns more about his mysterious brother. But as much as he would like to find out the full truth about Piodon, the search for the Radiant has already been put off much too long. So Seth and his friends set out for the island continent of the Wizard Knights... where they will discover a world that's completely falling apart!

As a new kind of Nemeses start to appear all over Cyfandir, Seth is drawn into a nefarious plot against his will. Suspicion stalks the halls of the Wizard Knights' castle, and the Merchant Barons watch with pleasure as these supernatural events unfold. It's only a matter of time before Captain Dragunov and Captain Liselotte get their hands on Seth!

Amid daily attacks by the Nemeses, the Merchant Barons continue their secretive scouting expedition in Cyfandir, which proves to their liking. But how can a small group of nobles hope to get their hands on such a fiercely guarded island-continent? Meanwhile, Seth goes on with his training in a mysterious forest, unlike any place he’s ever seen. There he will find that he has another important role to play, as the savior of the “Little People”…

The Day of the Accolade has come for the aspiring wizard knights! While Mélie and Myr attend the festivities, Seth and Doc infiltrate the basement of the castle to get their hands on documents about Radiant. While the party is in full swing, Cyfandir is attacked by the Inquisition. But why would they suddenly wage war, especially when up against the fantasia of the wizard knights?

War rages on in Caislean Merlin. Queen Boadicée’s armies are up against the ropes, leading her to enter the battle herself, at her own peril—especially given the weapons at their opponent’s disposal. As if that weren’t enough, Mélie is up against an Inquisitor, and Seth’s friend Ocoho is facing her own personal crisis. Doc is coming with help, but will it help turn the tide? The wizards mustn’t lose, if they are to keep their freedom.

After the height of the battle, the fight between the Inquisition and the people of Cyfandir is coming to a close. The wizards have been beaten back and have no choice but to seek refuge in the forest. They can’t be counted out just yet, but how much do they have left in the tank? For even the forest seems to have fallen into the enemy’s grasp. Can Seth keep it together long enough to avoid destroying himself and all those around him?

Seth’s team is in a difficult position at the Broom Broom Survival Cup after getting struck by a giant dragon's head and being dealt other setbacks. Clearly not in his element, Seth will rack his brain to find a way through it all, leading to a one-of-a-kind finish! After the race, Seth and his friends face a new emergency, and are forced to rethink old friendships and alliances as they go after a former ally. They are soon off once more to lands unknown, with even greater and wilder adventures lying ahead.

Seth and his friends are separated as they head to Bôme, seat of the Inquisition, to retrieve the Nemeses their old ally Grimm stole from the Artemis Institute. They are beset by different groups of enemies, including members of a mysterious organization calling themselves the Mesnie. Their one chance of getting out of this mess lies with… Doc, their most cowardly and inept companion. Do Seth and company have any hope of reaching their destination safely... or even making it out alive?

Seth hasn’t given up on tracking down Grimm. But he and his friends run afoul of the Inquisition in the city of Bôme when they take down a Nemesis right in the royal garden. Seen as an attempt on the king’s life, Seth has no choice but to flee, aided by a one-time enemy. He isn’t the only one in a tight spot, either, with his friends Mélie and Ocoho also facing mortal danger. If they want to make it out alive, they'll have to pull out all the stops—no matter the cost.