I received this book from the publisher at no cost.
This is a really hard story to talk about without major spoilers. So initially, let me know: the premise is quite clever – man makes machine that may well interfere with the very fabric of reality – and there are some nice points of world building. There’s a point at which you may well wonder whether your version of the text has somehow been corrupted (I did), but it’s actually the story itself, as you discover when you keep going (… unless your copy actually is corrupted…). However, I had some issues, mostly in the characters which I’ll mention in the spoilers section; partly it was in the prose itself, which at times just felt clunky.