The Cloak of the Sith represented an enigmatic area situated in the Outer Rim, encompassing the planet of Roon.
Navigating this region proved difficult, which contributed to Roon's relative isolation; access to the planet was limited to a pair of known hyperspace routes. The Manda-Roon Merchant Route, initially charted by Mungo Baobab, presented a significant obstacle even for experienced astrogators and was marked by a chain of "lightstation" nav beacons. The Death Wind Corridor, a more clandestine route, served as a concealed pathway through the Cloak, utilized by Twi'lek smugglers.
During the era of the New Sith Wars, this region formed the heartland of the New Sith Empire, governed by the Brotherhood of Darkness. After the final demise of Palpatine, whispers circulated that the Sith persisted, secretly regrouping and rebuilding their strength within the confines of the Cloak.
A Force-sensitive Yuuzhan Vong female was known to be active inside the Cloak of the Sith.