This guy in the Plantation house appears if you chose this option when Mr Gibbs talked to you at Anse- Casse Bois beach:-
from walkthrough--
Code:
Jack Rackham asks if ready to sail - tells you to sail to Anse Casse-Bois on other side of Guadeloupe and from there go through jungle to Petros' Plantation. – QB Update
SAVE HERE
Sail to Anse Casse-Bois - on shore Mr Gibbs talks to you (2 choices)
Gibbs to stay with ship
Go through jungle on your own – go to house outside fort entrance ( 1st jungle screen )
Transported to prison - Talk to Cap’n Drow. – escape – avoid 3 EITC officers in Port - sail to Turks on jetty Petros talks to you - gives you your ship back.
Petros tells you Capt. Nathan Kell has part of map. Annamaria knows where Kell is she is waiting at Lighthouse on Barbados
Mr Gibbs leaves you
Go Searching for Nathan Kell
If you choose this option you should go to the house outside the fort ( section of jungle before you get to the Plantation section.) - for the story to continue.
The guy in the plantation house - is (was) an easter-egg.
If you want to meet Petros at the plantation and follow that path then you must choose the other option when Mr Gibbs talks to you at Anse Casse-Bois beach.
I.e. -- you must tell Mr Gibbs to come with you.