 CONT: In the Lydias battle with the Natividad, the main topgallant  staysail (top sail, middle mast) on the Lydia vanishes early in the  battle. We can tell because the sail in front of it on the foremast  is shot down. Later in the battle, the Natividad fires at the  rigging, and then the main topgallant staysail is shot down. Also in  the later shot the top sail on the foremast briefly reappears. Then  still later, both sails reappear for a shot of the Lydia sailing,  and then they disappear again as the Lydia closes in to destroy the  Natividad.