Your contact has grown suspicious of Salomon Zabala - she suspects he is the one that's involved in the embezzling scheme. Now she needs you to board an outgoing ship to look for proof.
This is mostly a swashbuckling mission, even though you start it in your ship. You will see three non-hostile level 50 ships ahead of you, one House Trader and his escorts. Sail up to the Trader and talk to him. At this point his escorts will turn hostile, but you can click on the Trader again immediately to board the ship.
Once aboard, you will be attacked by a few crewmen (also level 50). Defeat them and go onto the aft deck to talk to the Captain. Talk to him and then defeat him when he turns hostile.
- Meet with the Allied Ship
- Defeat the Captain