 Finding such a letter among the 247 surviving would give credence to the legend but not finding such a letter would not disprove it because the letter might be one that did not survive.That is one of the problems with legends.This legend of a prison appears to have given rise to many variations, possibly the most imaginative being a story that thirteen Turkish maidens, condemned for serious crimes, were set adrift at sea by relatives only to be shipwrecked on this small rocky island where they lived alone for seven years before they were found by their relatives, having had a change of heart, and brought home.