Horse Camp, Fawcett wrote to his wife about the hardships that he and his companions had faced, his coordinates, his doubts in Raleigh Rimell, and Fawcett's plans for the near future. He concludes his message with, "You need have no fear of any failure..." One question remaining about Dead Horse Camp concerns a discrepancy in the coordinates Fawcett gave for the camp. In the letter to his wife, he wrote: "Here we are at Dead Horse Camp, latitude 11 degrees 43' South and longitude 54 degrees 35' West, the spot where my horse died in 1920" (). However, in a report to the North American Newspaper Alliance he gave the coordinates as . The discrepancy may have been a typographical error. However, he may have intentionally concealed the location to prevent others from using his notes to find the lost city. It may have also been an attempt to dissuade any rescue attempts; Fawcett had stated that if he disappeared, no rescue party should be sent because the danger was too great. Posthumous controversy and speculations Henry Costin's opinion Explorer Henry Costin accompanied Fawcett on five of his previous expeditions. Costin expressed his doubt that Fawcett would have perished at the hands of native Indians, as he typically enjoyed good relations with them. He believed that Fawcett had succumbed to either a lack of food or exhaustion. Rumours and unverified reports During the ensuing decades, various groups mounted several rescue expeditions, without success. They heard only various rumours that could not be verified. While a fictitious tale estimated that 100 would-be-rescuers died on several expeditions attempting to discover Fawcett's fate, the actual toll was only one—a sole man who ventured after him alone. One of the earliest expeditions was commanded by American explorer George Miller Dyott. In 1927, he claimed to have found evidence of Fawcett's death at the hands of the Aloique Indians, but his story was unconvincing. From 1930 to 1931, Aloha Wanderwell used her seaplane to try to land on the Paraguay River in the state of Mato Grosso to find him. After an emergency landing and living with the Bororo tribe for six weeks, Aloha and her husband Walter flew back to Brazil, with no luck. A 1951 expedition unearthed human bones that were found later to be unrelated to Fawcett or his companions. Fawcett's alleged bones In 1951, Orlando Villas-Bôas, activist for indigenous peoples, supposedly