After 17 years, the first book in a much-anticipated companion series to the “His Dark Materials” trilogy is set to be released in October 2017. The HDM trilogy has received international acclaim in the years since its release, as has its author, Philip Pullman. Pullman, a decorated author and current president of Britain’s Society of Authors, has long been known for his vocal humanism, political involvement and successful two-decade writing career, has until recently been nearly silent about the prospect of a companion series.