Inside a former factory a short drive from the Welsh capital of Cardiff, locations from the magical, alternative world of Philip Pullman’s His Dark Materials have been continuously designed, built, knocked down and rebuilt since early 2018. The 250,000-square-foot Wolf Studios Wales — ironically, the former site of a Nippon factory, which made glass for traditional TVs and closed in 2005 (blame the rise of flat-screen TVs) — was opened specifically to house HBO/BBC’s ambitiously grandiose retelling of the author’s trilogy. Adapted by Jack Thorne, the show centers on a young orphan girl moving through a world in which all humans have animal companions that represent an external soul. The eight-episode first season, which stars Ruth Wilson, Lin-Manuel Miranda, James McAvoy and Dafne Keen in the central role of Lyra…