Lin-Manuel Miranda is making The Kingkiller Chronicle, but doesn't know how it ends

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Oct 30, 2017, 3:43 PM EDT

Expect to hear a lot in the coming months about how The Kingkiller Chronicle is the next Game of Thrones as the popular fantasy novels by Patrick Rothfuss are adapted into a series of movies and an all-new prequel television series for Showtime.

Both book series feature richly detailed medieval fantasy worlds created by modern authors — George R.R. Martin's A Game of Thrones was published in 1996, while The Name of the Wind hit the shelves in 2007. The series are also new enough that they're both still unfinished, with fans long awaiting the third book in The Kingkiller Chronicle and both the sixth and seventh books in Martin's A Song of Ice and Fire

The lack of an ending could make work difficult for producers adapting these books for the screen. To head off that issue, Martin outlined his plans for the remainder of his books to the Game of Thrones showrunners fairly early in the HBO series' run. (It's anyone's guess how much the final season actually lines up with Martin's original vision.) But Lin-Manuel Miranda, the composer and playwright behind the Broadway hit Hamilton who signed on as the executive producer on the Kingkiller Chronicle adaptations, recently said that Rothfuss hasn't yet revealed the novels' ending to him: 

"Pat guards this secret," Miranda told Vulture in an interview. "I’ve talked to Pat for hours about these books and the stories in them, and I don’t know how it’s going to end. He’s very good at talking about it in a way that leaves it open."

That at least means Miranda, a long-time fan of the book series, might be as free of spoilers as the rest of us once the final chapter is published. Miranda effused about how The Name of the Wind inspired songs he wrote for both Hamilton and Disney's recent animated hit Moana. Rothfuss's writing also had an impact on Miranda's critically lauded take on founding father Alexander Hamilton. "Pat shows us all of Kvothe’s faults," Miranda said. "He accomplishes great things and he also messes up great things, and it comes from the same place. He shares that with my version of Hamilton, who believes he can write his way out of anything, and he really can’t. It’s this sort of brilliance and impatience with this bedrock of insecurity underneath that Hamilton and Kvothe both share."

In addition to helping Rothfuss navigate the demands of Hollywood while ensuring a faithful adaptation of the novels, Miranda said he'll be composing original music for the movies. The Pulitzer, Tony, Emmy, and Grammy award-winner described the pressure of writing music that so far only exists in the reader's imagination. "It’s a daunting task to actually put notes to that, but one of the things that drew me to those books is how beautifully Pat writes about music and the way it speaks to us and the way it feeds us in the absence of actual nourishment," Miranda said.

Read the full interview here