The author, Thomas Wheeler, is a screenwriter by trade, and boy does it show. A trivial example: Sir Arthur Conan Doyle takes a ship to America in order to meet with H.P. Lovecraft. The chapter starting on his arrival is headed, yes in all caps, “TWO WEEKS LATER”. Now, this is something you have to do in a movie, where there’s no really good way to explain the scene shift unless you’re using a narrator. Same for the hero looking through the notebooks of a dead magician, and finding the kind of mysterious expository scribblings that, in a movie  are there to show the viewer what’s going on. In a book it’s ridiculous and reminds you that, yes, somebody is probably tilting this thing to be made into a movie.

Add in wooden dialogue, a frankly embarrassing portrayal of the lone female protagonist as a lonely sexpot, and a leaden Evil Conspiracy Opposed By A Good Conspiracy, and you’ll understand why I quit halfway through.