Star Wars - Enemies of the Outer Rim
Ossus has a long history tied to the Jedi Order. Most recently, it was the site of Kol Skywalker’s Jedi Academy. The Sith would lead an attack on Ossus devastating the Jedi Order within, prelude to a massive turbolaser barrage which would level the temple.
However, many of the lowest levels of the Temple would survive, and many of the Jedi artifacts contained within would be protected by a sect of Yuuzhan Vong priests and warriors who believed they owed the Jedi a great debt.