It was not difficult to get past the patrols and stations of the Eternal Fleet. Everyone knew how the Empire of Kalidan was on the verge of collapse. A once great Empire led by iron will and uncompromising ideology, harsh and strict, found its way to decadence, to allow minor criminals and cuttthroats to influence its greatness relying not on its seemingly indomitable military but rather the will of one woman who was one of weirdest on the state of rulers in the Galaxy.
But that didn't matter to the Warmaster at the moment. He was where he wanted to be and would get what he wanted.
The Tomb was a former prison, used by various galactic institutions, though the interesting ones were those who initially build it. The Rakatans and their Infinite Empire. In combining technology with the Dark side they achieved a great many tools such as the Star Forge, weapons which helped to shape the Galaxy, to ride on the tide of nature. Now they were gone, swallowed by their own hubris and lacking mastery of what they perceived as mastered. But one can only do so much when dealing with primordial powers.
The Prisons on Belsavis were not used for a long time and probably avoided in the recent centuries by adventurers and occupants alike. Many fortune-seekers, artifact hunters and tomb raiders plundered a great many of the vaults secrets and treasures. But not all of them. Nor were all ready to bring so much ... of key materials.
Gruesome Graug overseers whipped the mass of cattle forward, out of the intestines of the ship and forward towards The Tomb. Some were immediately dying by the cold, in shock and terror, but the mass just carried them further, maybe even feeding off them. 'Sentients' were capable of all kind of atrocities once they lost their freedom, dignity and chances of survival.
Not paying a single ounce of attention to the mass of a thousand slaves he passed by with his colossal steps, leading a procession of twisted creatures in sanctified robes and runes to conduct the ritual to come with him. Many of these would not survive either, but the key was life and he was willing to open as many locks as possible.