A fast ship in the bay is bombarding the helpless port with siege engines. It's out of range for the locals to deal with, and possibly not alone.
A ship that set off on a voyage of exploration many years ago, and was presumed lost, has returned to the city's port. However, no one seems to be aboard, and superstitious sailors are calling it a ghost ship.
On the night of the new moon for the past three months, two ships with black sails have put into the city port, arriving and leaving in the dark of night. None of the watchmen at the port have seen them discharge or take on any cargo or passengers. Tomorrow night is another new moon.
The Scaly Schooner on the Fisherman's Wharf explodes as the PCs pass by. Amongst the screams and fire, a badly burnt, wild-eyed man in scorched pirate's garb stumbles over to the PCs and hands them an enormous red ruby. "It's not the last one, but don't seek the treasure!" he hisses at the PCs before collapsing at their feet.
Walking by the docks, you are surrounded by a group of sailors carrying clubs wrapped in rags. One steps up and says, "The Imperial navy thanks you for enlisting for a term of service!" The men proceed to attack and try to knock the player characters unconscious.
While sailing into harbor the PCs' ship is mistaken for a pirate vessel that has been plaguing local shipping. As the ship is attacked do they defend the innocent crew, try to reason with the attackers or try to abandon ship and escape into the harbor?
Encounter Generator