Thank you very much to our amazing Patrons for their support of the channel, including our Darth Bane and Grand Admiral Thrawn Tier level Patrons:
The Non-Canon Expert describes how Darth Sidious truly viewed his apprentice Darth Vader's defeat to Obi-Wan on Mustafar, pointing to Sidious's own internal understandings, actions he took and what he directly told Vader himself.
This topic is looked at from both a Canon and Legends perspective. For the Canon aspects, the information can primarily be found in the 2015 Canon Darth Vader comic, while the information for Legends is found in the Legends novel Dark Lord: The Rise of Darth Vader by James Luceno. I hope that you enjoy it!