Mysterious Castle

In this world, a mysterious castle floating above a ocean of lava is discovered by some kingdoms nearby only one dares to venture close. Dragon circle overhead as a swirling cloud of ash also floats above the castle. You can either be the one investigator the castle or you can be the one trapped in the castle waiting to be saved. You can be a male or female just don’t be weird what I mean by that is don’t be lesbian or gay or trans. That’s just weird.