what is the cargo in ahsoka

According to the search results, the cargo in Ahsoka is hundreds of coffin-like containers containing dead Nightsisters. Grand Admiral Thrawns forces have been loading these containers onto his Star Destroyer, The Chimaera, as part of his agreement with the Great Mothers, a trio of Nightsisters who helped him make contact with the main Star Wars galaxy. The containers are located in catacombs and are so numerous that it takes at least three rotations (days) to transfer them. The contents of the containers are likely a legion of corpses based on their size, location, and hints from Thrawns remaining forces.