Piraka Stronghold

The Piraka Stronghold is a giant fortress that the Piraka tricked the Matoran into building. It was where the Piraka make the Zamor spheres and the first Matoran was slaved. No Matoran was let 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. Four battles took place there.