Nathan works as a bartender and pickpockets wealthy patrons. Victor "Sully" Sullivan, a fortune hunter who worked with Sam tracking treasure hidden by the Magellan crew, explains to Nathan that Sam vanished after helping him steal Juan Sebastian Elcano's diary. Nathan, who has several postcards Sam sent him over the years, agrees to help Sully to find his brother. Sully and Nathan go to an auction to steal a golden cross linked to the Magellan crew. There, the pair encounter Santiago Moncada, the last descendant of the Moncada family (who funded the original expedition), and Jo Braddock, leader of mercenaries hired by Moncada. Nathan is ambushed by Braddock's men, and the ensuing fight creates a distraction for Sully (disguised as an auction attendant) to steal the cross.
