When Kylo Ren arrives on the Sith planet Exegol in Star Wars: The Rise of Skywalker, fans can see giant tanks that appear to hold Snoke clones created by Emperor Palpatine. Well, The Star Wars Book confirms (via Twitter’s Old Man Blinks) that this is indeed the case. According to the book, Snoke is “a strandcast — an artificial genetic construct concocted by the resurrected Darth Sidious to be his proxy in power.” It also points out that while Snoke does possess free will, his goals are ultimately controlled by Sidious.