Via CBR.com:
Marvel’s Star Wars comics have been peeling the curtain back on so many aspects of Darth Vader, you’d never think this was the same character we saw on-screen in the ’70s and ’80s. We’re now seeing so much depth to him, forcing us to empathize with his selfish reasons for wanting to harness the Dark Side of the Force.
Come Darth Vader #22, Charles Soule and Giuseppe Camuncoli continue to unpack the backstory of his famous obsidian castle on Mustafar. However, after the last issue hinted Vader wanted to use this castle to increase his powers, we now discover an even bigger hidden secret regarding its existence…