So this was... pretty incredible. 
 I had read Clines' The Fold just about as soon as it had come out based on a glowing tweet I had seen. As soon as I read the inside jacket I pretty much knew that that book was going to push all of my buttons, and it did. I think I read it in about the space of four hours over two days during this past summer and I think I freaked out about how good it was a whole bunch on twitter. 
 This was... the same story? It wasn't. It dealt with a lot of the same ideas including (view spoiler)[ the transition into another dimension, but this time using... well, still science, but instead of the complicated and at least mostly theoretically accurate depictions of the quantum mechanical methods used in The Fold, 14 used - as some of the characters come straight out and say, "steampunk" science. Indeed, it turns out that the Kavach building was built by some of the 19th century's brightest scientific minds to keep other-dimensional monsters at bay, where as in The Fold, modern scientists unwittingly stumble on this other dimension when they try to do something else entirely. (hide spoiler)] 
 I can't tell you which book I liked more - I instantly fell in love with The Fold because it tickled all the science parts of my brain, whereas I loved 14 because it tickled all the eldritch horror parts of my brain. If you were to add magic or fantasy in some way, that would be almost all of the parts of my brain. But these two books really compliment each other, (view spoiler)[ the fact that The Fold briefly contains a few of the characters from 14 aside. (hide spoiler)] But they really are two sides of the same, wonderful, excellently-told, extra-dimensional coin. 
 I do have one nit to pick, though. (view spoiler)[ Why the hell is this book called 14? Other than apartment 14 having definitely the weirdest contents of any apartment in the Kavach building (which is to say, the vacuum of space), it had almost the least to do with the whole damn book, and for all the things that were eventually explained, the purpose of room 14 is really only ever guessed at, at best. (hide spoiler)] But I'm sure that probably wasn't even Mr. Clines' decision and was probably just an intriguing title for a book that would otherwise be hard to summarize.