1502, the Third Armada captured another Calicut merchant ship near Mount d'Eli, which it sacked, burned and sunk. It began the return voyage soon afterwards. The armada made two watering stops in East Africa: first at Malindi, where Nova deposited letters that would be received later that year by Thomé Lopes, and second at Mozambique Island. After turning around the Cape of Good Hope, Nova sailed into the South Atlantic and discovered the uninhabited island of Saint Helena while he was returning home. It is believed that the island was named after St. Helen. By tradition the date is the feast day of the saint on May 21. Jan Huyghen van Linschoten in a 2015 paper says that the date is a mistakenly quoted Protestant feast day for a discovery made two decades before the Reformation, instead suggesting May 3 as the more likely date, the feast day of the True Cross. According to legend, Nova anchored on the western side of the island and built a timber chapel at the location of the future Jamestown, Saint Helena. The island became a routine staging post on future Portuguese expeditions to India, but its existence and location was a Portuguese secret for the next eighty years until English captain Thomas Cavendish stumbled upon it in 1588. Nova's Third Armada arrived in Lisbon on September 11, 1502. According to the letters by Italian merchants in Lisbon, the Third Armada brought back 900 cantari (quintals) of black pepper, 550 of cinnamon, 30 of ginger, 25 of lac, and other assorted goods. The amount of cinnamon has been cited as evidence of the theory that the armada visited Ceylon, but cinnamon was not rare in other Indian markets. Some of the cinnamon may have come from the cargoes of seized vessels. Aftermath The expedition of the Third Armada was not considered a resounding success. Although there was no significant loss of ships or men, the armada came back with fewer spices than what was anticipated; letters insinuate that the cargo holds were partially empty. Nova also failed to trade for gold in Africa. The report of the cash constraint in India and the armada's reliance on piracy to fill its holds disheartened Portuguese merchants, who had previously thought that they could make easy profits on both legs of the India run. In contrast, the discovery of Ascension Island and Saint Helena was well received.