Fantasy author Brandon Sanderson is giving some behind-the-scenes details concerning his blockbuster deal with Apple TV+ to adapt his bestselling Cosmere books. Sanderson took to his YouTube channel Tuesday to answer some of his fans’ burning questions following The Hollywood Reporter‘s scoop last week that the streamer picked up the rights to Mistborn and The Stormlight Archive. First, Sanderson explained why he went with Apple TV+ and revealed the streamer beat out multiple rival offers. Sanderson’s deal is rather enviable — he will write, produce, consult and have cast approvals. This is a greater degree of control than fellow fantasy authors like George R.R. Martin and J.K. Rowling have over their Warner Bros. Discovery shows. “This is what I’ve been trying [to do] for years,” he said. “Back in May, I flew out to Hollywood and did pitches to all the major streamers and studios. I had a lot of great experiences. Things were different this time around. I was with studio heads. I was meeting really exciting people. Basically, everybody tried to bid on Mistborn …