Piraka Stronghold

The Piraka Stronghold was a giant fortress that the Piraka tricked the Matoran into building when they invaded Voya Nui. It was where the Piraka made the Zamor Spheres and the first Matoran was slaved. No Matoran was allowed to enter the stronghold after it had been built. The stronghold included the chamber with the Antidermis virus holding vat. It also included Chamber of Truth and had lots of Nektann guarding the place. Its status is unknown after Voya Nui onto Mahri Nui.