The Spire

The Spire was a prison on Stygeon Prime that belongs to the Separatists. In 19 BBY, Maul was taken to the Spire after Darth Sidious captured him on Mandalore. Count Dooku and Darth Sidious kept asking Maul about the Shadow Collective but he refused to tell them anything. But Prime Minister Almec of Mandalore ordered the Shadow Collective to rescue Maul and they succeeded.

Appearances

 * Darth Maul—Son of Dathomir, Part One (First appearance)
 * Darth Maul—Son of Dathomir, Part Two (Indirect mention only)