The Outcast (novel)

The Outcast is a fantasy novel by Simon Hawke, set in the world of Dark Sun, and based on the "Dungeons & Dragons" role-playing game. It is the first novel in the "Tribe of One" trilogy. It was published in paperback in November 1993.
Plot summary.
Sorak is part elf and part halfling and has multiple personalities as a result of childhood trauma. His quest is to search for a savior for the dying world of Athas.
Reception.
A reviewer from "Publishers Weekly" comments that Hawke "more than intimates that Sorak himself is the long-awaited savior. His yarn offers fans of the fantasy genre some interesting themes to ponder."
Chris Wilson writing for "Time" describes "The Outcast" and "The Tribe of One" Trilogy as a fantasy epic that would have made for better TV than "Game of Thrones".