"We hired a sailboat and a guide and made an excursion to one of the small islands in the harbor to visit the Castle d'If. This ancient fortress has a melancholy history. It has been used as a prison for political offenders for two or three hundred years, and its dungeon walls are scarred with the rudely carved names of many and many a captive who fretted his life away here and left no record of himself but these sad epitaphs wrought with his own hands." (Page 102).