With the film made from the first book of his trilogy posed to open in theaters in December, the author's publishing firm announces a second follow-up book to the series, a companion book, as was Lyra's Oxford. Random House will be releasing Once Upon a Time in the North this spring, with different publishers in the US and UK. It will be Pullman’s first new work in five years, although he has already said he is working on another large-size story.