Complex sentence: The story ends with him receiving a gift from his "uncle" (the man who imprisoned him), which he decides he will probably get published and him opening a shop where he displays pictures of Africans that had been saved in Mallory's hideout.
Split into simpler sentences: The story ends with the narrator receiving a gift from his "uncle" (the man who imprisoned him), which he decides he will probably get published. He also opens a shop where he displays pictures of Africans that had been saved in Mallory's hideout.