Star Wars: The Rise of Skywalker redeemed Kylo Ren, and though you might credit Rey with helping to bring back Ben Solo, it's Chewbacca who arguably deserves praise for that. Rae Carlson's novelization for the movie reveals that the first spark of redemption for the Supreme Leader of the First Order came when he was reunited with Chewbacca.
Shortly after the Knights of Ren captured Chewie on Pasana, Kylo probed the Wookie's mind in an effort to discover where Rey and the rest of the Resistance were holed up.
The Resistance has been reborn. But although Rey and her fellow heroes are back in the fight, the war against the First Order, now led by Supreme Leader Kylo Ren, is far from over. Just as the spark of rebellion is rekindling, a mysterious signal broadcasts throughout the galaxy, with a chilling message: Emperor Palpatine, long thought defeated and destroyed, is back from the dead. Has the ancient Lord of the Sith truly returned? Kylo Ren cuts a swath of destruction across the stars, determined to discover any challenge to his control over the First Order and his destiny to rule over the galaxy - and crush it completely. Meanwhile, to discover the truth, Rey, Finn, Poe, and the Resistance must embark on the most perilous adventure they have ever faced. Featuring all-new scenes adapted from never-before-seen material, deleted scenes, and input from the filmmakers, the story that began in Star Wars: The Force Awakens and continued in Star Wars: The Last Jedi reaches an astounding conclusion.
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