When Burroughs returned from London in September 1959, Gysin not only shared his discovery with his friend but the new techniques he had developed for it. Burroughs then put the techniques to use while completing "Naked Lunch" and the experiment dramatically changed the landscape of American literature. Gysin helped Burroughs with the editing of several of his novels including "Interzone", and wrote a script for a film version of "Naked Lunch", which was never produced. The pair collaborated on a large manuscript for Grove Press titled "The Third Mind" but it was determined that it would be impractical to publish it as originally envisioned. The book later published under that title incorporates little of this material. Interviewed for "The Guardian" in 1997, Burroughs explained that Gysin was "the only man that I've ever respected in my life. I've admired people, I've liked them, but he's the only man I've ever respected." In 1969, Gysin completed his finest novel, "The Process", a work judged by critic Robert Palmer as "a classic of 20th century modernism".