The hulk in question is of a massive ship, larger than anything ever found in the Sith fleet; but within the bounds of reason, as it is smaller than some cargo haulers from the same period. It drifts among the shattered fragments of Republic and Sith ships alike. A class apart from any other ship found, it was given a designation of UNK by the initial salvage company. But sailors will tell their tales, and the ship is most widely known by the error message that salvage sensors threw upon first discovering it: class NULL.
The ship has a carapace of overlapping half-rings, and a narrower keel plate, of blastproof metal. Heavily scorched and pockmarked by laser fire, it does not appear to have been penetrated during the war. The material did yield to specialized cutting tools, and it may be lucrative to reverse-engineer the alloy.
Below the carapace, the spine of the ship was lined with ritual chambers. All sorts of paraphernalia, including athames, robes, and spellbooks, were found in situ. Many of these artifacts went missing and made their way to the collectors’ market, but someone had the presence of mind to lock all the books away in a shipping container meant for Ossus. Although there’s no evidence that the books have been discovered or stolen, registration information on the container itself was lost during the buyout.
A point of interest is the ship’s excessively robust power generation. The main generator chamber at the back of the ship opens into a gallery of spark pistons that runs the length of the ship. This would be an unusual construction on a modern ship, and ships of the Great Hyperspace War were largely solar sailors, with much lower baseline power consumption.
Finally, the salvagers’ tales are most colorful. They say they found clouds of dust floating, still in the uniforms and robes of the crew. The interior was undamaged by fire or explosion, but the power conduits had burned away to nothing. And those who entered the spark gallery are haunted by shadows that last a little too long whenever they turn on a light.