Over eight years of work, over 4,000 edits, and this is the description of the conclusion of the book:
QUOTE
Here, Frankenstein's narrative ends and Captain Walton reassumes the telling of the story. A few days after Frankenstein finishes his story, Walton and his crew decide to turn back and go home, since they cannot break through the ice. As Frankenstein dies, the monster appears in his room. Walton hears the monster's adamant justification for his vengeance as well as expressions of remorse before he leaves the ship and travels toward the Pole to destroy himself on his own funeral pyre so that no others will ever know of his existence. The monster hears Walton outside the room, with such curiosity Waldon makes himself known to the monster in the room. He starts to flee the room then stops he discovers Waldon is still standing there and then Waldon calls for him to stay. He now knows this is his only chance to tell his life story to the first person who is willing to listen to him. He wants to let him know that he did not come from evil that he once had goodness in his heart and love and how he wanted to participate in this world to show his "excellent qualities." To see past his hideous sight, but that never happened which led him into a lonely miserable path to seek revenge on Frankenstein. He wanted to make him feel miserable, outcasted from society and to never have love and companionship again in his life. He knows has accomplished his revenge, as he sees Frankenstein lay there dead he claims him as his victim, as his hands were the cause of his "irremediable ruin." With his revenge complete he lets Waldon know that it is time die, by his own hands and not to worry no other man will die by his own hands. He then says his last farewells to Frankenstein and Waldon, which he comments he is ready end his agonies and have his soul live in peace. He jumps out of the vessel then onto his raft and rides away into the darkness towards the north pole where his ashes will be swept into the ocean.
One wonders if a tale of playing God, without having the depth to understand the soul, and how this leads to a monstrous state of being, is awfully appropriate for Wikipedia.
Please don't tell me to "so fix it". I can't fix a broken soul.