This is the second-to-last book in the series, so as you can probably guess, this is not a good place to start. Books #1 through #9 in the Alex Verus series are reasonably standalone – if you skip a few books you’ll miss some things, but you’ll still have a fairly good idea of what’s going on (especially books 1-6, whose contents all get recapped). However, the last three books of the Alex Verus series, #10, #11, and #12, are really just one big interconnected story that happens to be split into three volumes. If you’re going to read Forged, it is REALLY REALLY important that you read book #10, Fallen, first. Otherwise once you get into the first chapter (which you can read here) then I promise you, you will have absolutely no idea what the hell is going on, why Alex is in the position he is, or why he’s chasing the person he’s chasing.
Anyway, enough warnings, go enjoy the book! Readers outside North America will have to wait a week for the UK/rest of world release date, which is December 1st.