More years pass and Crusoe discovers native cannibals, who occasionally visit the island to kill and eat prisoners. At first he plans to kill them for committing an abomination but later realizes he has no right to do so, as the cannibals do not knowingly commit a crime. He dreams of obtaining one or two servants by freeing some prisoners; when a prisoner escapes, Crusoe helps him, naming his new companion "Friday" after the day of the week he appeared. Crusoe then teaches him English and converts him to Christianity.
After more natives arrive to partake in a cannibal feast, Crusoe and Friday kill most of the natives and save two prisoners. One is Friday's father and the other is a Spaniard, who informs Crusoe about other Spaniards shipwrecked on the mainland. A plan is devised wherein the Spaniard would return to the mainland with Friday's father and bring back the others, build a ship, and sail to a Spanish port.
Before the Spaniards return, an English ship appears; mutineers have commandeered the vessel and intend to maroon their captain on the island. Crusoe and the ship's captain strike a deal in which Crusoe helps the captain and the loyal sailors retake the ship and leave the worst mutineers on the island. Before embarking for England, Crusoe shows the mutineers how he survived on the island and states that there will be more men coming. Crusoe leaves the island 19 December 1686 and arrives in England on 11 June 1687. He learns that his family believed him dead; as a result, he was left nothing in his father's will. Crusoe departs for Lisbon to reclaim the profits of his estate in Brazil, which has granted him much wealth. In conclusion, he transports his wealth overland to England to avoid travelling by sea. Friday accompanies him and, en route, they endure one last adventure together as they fight off famished wolves while crossing the Pyrenees.