Fics like ...Or Is He Both?

Doctor Robert "Bruce" Banner was a man who should be dead. He had died before, many times, but something would keep happening. He would pass through a Green Door and find himself back into the world of the living, never able to escape his plight. Bruce now understands a terrible truth: The Hulk will not let him die. So he wanders the world, a walking ghost by day... and the Immortal Hulk by night! The Kingdom of Melromarc wanted four legendary heroes to fight against the monsters that plagued their lands. Summoning Bruce as the Shield Hero, these people will learn that they might have brought something worse into their world. Just what is Bruce Banner? What is the Hulk? And what have they brought with them from beyond the Green Door?

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