This is all based on Tolkien's writing and what we have been told. You could say this is non-fiction. Enjoy.
Saruman's spirit wandered across the plains. He was dead thanks to that wretched Wormtongue. He had some pleasure in seeing his former ally be killed by the worthless Halflings. He paused his wandering for a moment to wonder where Wormtongue's ea was going to go before reminding himself there were more important searches to take place.
Silently, he moved towards Valinor. The great sea shone in front of him. He smiled and remembered the beautiful plains and the smith of Aulë. He would be taken in as a hero by the accepting arms of his teacher. He had been crafty and wise in learning the movements of Sauron, the great enemy. He had prevented him from finding the Shire earlier and capturing the Ring. He had made a few little mistakes, but it was necessary to play the part of Sauron's agent.
The land was coming into the view. Saruman sailed to the land, happy to have returned to his home. As he was about to land himself on the sands by the sea, a barrier seemed to push him out. A wind blew, carrying him back to Middle Earth. He heard the voice of Eru in his ear.
You have failed, Curumo. There is no redemption for the servants of Morgoth.