You have been sent to negotiate a peace treaty between your kingdom and the Molten City ruled by Zorah Magdaros. As you enter the city, you see that almost every building is made from molten rock except for one. You begin to approach a castle made completely of obsidian, where Zorah Magdaros resides. As you enter the castle, you see Zorah Magdaros sitting on a obsidian throne.

Who are you?