Radiant, Volume 5 (Radiant #29-36)

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!