In the episode (Ninjago Season 13, Episode 7), the plot centers on the dramatic reveal of the season's primary antagonist. The story begins with Princess Vania worrying about the Ninja, who have been missing underground for too long. She decides to venture into the tunnels with her pet dragon, Chompy, to find them. Meanwhile, Cole is in a dire situation, narrowly escaping a flock of Dire Bats only to be trapped in the lair of a giant spider. Vania and Chompy arrive just in time to rescue him, with Chompy growing to a massive size to scare off the beast.
Watch a detailed analysis of the major plot points and the shocking villain reveal in this episode review: [S13E7] The Skull Sorcerer
The episode's climax occurs when they return to the surface and confront King Vangelis with news of the evil "Skull Sorcerer". In a shocking twist, Vangelis reveals that he is the Skull Sorcerer . He explains that the prosperity of Shintaro is funded by the sale of Vengestone, which he forces the Geckles and Munce to mine using the power of the Skull of Hazza D'ur . In the episode (Ninjago Season 13, Episode 7),