Kadir - the Half Orc Shadow Sorcerer

Born of a human mother and an orc father. He was raised by his mother and his older human sister who taught him the art of herbalism. He left on a pilgrimage to meditate in solitude and to quell the call of gruumsh within him to further fit into human society. While away he had a vision of some great calamity and knew he had to return. Alas he was too late to save his sister. He attempted resurrecting her at the temple but the clerics could not help. They stated that resurrections have been failing for the last 20 days.

Desperate to find out what happened to his half sister's soul Kadir sought dealers in dark magics to assist with his investigations (red wizards?). Short of killing himself, the next closest thing to tracking his sister was to try and search the Shadowfell, the place you go on the way to the afterlife. He questioned wraiths and spirits, and Shadar-Kai asking if they had seen any newcomers on the way to the afterlife. To his surprise no ghosts attempted to possess him, acting afraid of the prospect of revisiting the mortal realm. His questioning found that no newcomers, other than himself, had arrived or passed through the Shadowfell. One word uttered in vacant haunted fear escaped them.... "Chult".

Though Kadir had left the Shadowfell for the material plane to seek Chult, the shadowfell had not left him. His time there poisoning his soul with dark energy and newfound power, power he would use to smite with singular purpose whoever had possession of his sister's soul.