Platcanor

Platcanor is a volcanic planet and the main base of the Demonic Army. It is surrounded with lava rivers and has also a dungeon, where the Demonic Army held the prisoners. The Platcanor is also ruled by the leader of the Demonic Army, Thantos.

In the series
During the episode "Atlantic: Volcanic World (Part 1)", the Demonic Army captured and brought the imprisoned Vampirina's friends, her family, the PJ Masks and the Disney Junior Club in the volcanic planet, Platcanor, and were held to dungeon. Later on, Armadylan and Vampirina went to the Dimensional Portal to Platcanor, where to save her family and their friends. The two kids, try to evade the Demonic Army, who were all guarding in some areas, including the dungeon, where their friends and Vampirina's parents are held.

In "Atlantic: Volcanic World (Part 2)", before Armadylan and Vampirina could reach the dungeon to save their friends and her family, they overheard Thantos and Versago, talking about their plans on the prisoners. The two were surprised as they heard that they were planning to turn their friends and her family evil, and the leader asks Versago to make the evil potion for his plan and worse, to take over the Pennsylvania.