Bloodbound. Vid:ilantes, #2

One by oath, one by blood, one by election. In a world of superheroes, Jayesh has a rare healing power that he uses in the local hospital. When teenagers are admitted with feather-patterns burned into their backs, Jayesh is reluctantly drawn into the underworld of black market magic smuggling. A chance encounter with Omniscient, the villain in charge of the smugglers, leaves Jayesh with his magic shattered.
A portal to the hospital goes wrong and Jayesh is instead sent to an island in another dimension: an island that has awaited its Bloodbound for centuries. In exchange for healing, he is magically bound to the island, and half his magic is turned into a tiny dragon. Now, with the help of the Islesworn, James Chase, Jayesh must go undercover to recover the mysterious Pandora. But this means facing off with Omniscient, a villain who can bring a person's fears to life-and who is increasingly ruled by his own power.