Great Rift Adventure 2: Deepnight Endeavour

From publisher's website:

Great Rift Adventure 2: Deepnight Endeavour takes place aboard a derelict exploration vessel which the Travellers must enter to locate fuel. With no way to get home, they discover there are survivors, and that the ship has taken aboard a malevolent entity seeking to reach an inhabited planet. The Travellers might simply try to escape or they could attempt to destroy the entity, but they will face opposition from the original crew as well as the entity itself.

This adventure includes full deck plans and descriptions of the massive exploration ship, the Deepnight Endeavour, along with factions of surviving crew members, and the horrifying alien presence that has infected the vessel…