Session 10 Grave Alliance Report

General Summary

The party meets Captain Grimzod Gargenhale who has lost half of his fleet to the Xaryxian Emipre's battle fleet. Coming aboard the Second Wind from his badly damaged space galleon the Last Breath he offers to join the fight against the Xaryxians provided the party joins his command with their ship. He offers them a weapon that they can use against the Empire.
Commodore Krux balks at serving under the Vampirate, but agrees to turn over command of the Second Wind to a captain elected by the party. They elect Wilhelm as the new captain. Grimzod learns Topolah is aboard and he makes a deal with them. The party learns about Grimzod's pirate code. 
The Last Breath flees and Mr Flinch is possessed by its ghost, Agony. The possessed Flinch tells Grimzod that his crew is mutinying, due to his problems with the Xaryxians.
With Krux on the helm they chase the Last Breath. Grimzod uses a Vampirate Captain power to make the Second Wind invisible and the party, as well as the pirate captain sneak aboard the galleon. There they kill a bunch of vampirates and an Ogre. When Grimzod and Wilhelm split from the rest to capture the spelljammer pilot Wilhelm forces a more equitable deal on the vampirate. Together the pair force the door of the bridge and the spelljammer pilot uses a magic artifact to teleport away.
In the hold the party faces Agony the ghost. Grimzod tries to reason with the spirit, but she rebuffs his efforts. Agony tries to possess Sandy, but fails and the party destroys her. Grimzond tells them that she will always return to the ship, eventually.
Grimzod then shows the party his weapon, the prisoner Princess Xedalli, daughter of Emperor Xavan and heir to Xaryxis throne.