I finished this last night, but I decided to wait before reviewing it ... otherwise, it would've just been me flailing at the keyboard and screaming about how much I loved this book. Let's try to be a bit more cohesive, shall we? 
 Okay, so, this is book 2 of the Wax and Wayne trilogy (plus the interim The Alloy of Law). Wax continues to be a fantastic main character, but in this book, it's the support characters that truly get a chance to shine. Wayne, of course, but also (view spoiler)[MeLaan (hide spoiler)], Marasi, and MY GIRL STERIS. Unlike most book 2's of a trilogy, which seem to end on a cliffhanger (usually a depressing one), this book felt like the natural end of a chapter. Obviously, there are many unresolved issues, but the ending felt like a good place to stop, take stock, and relax for a minute before the final push. 
 I love how this book expands the scope of the trilogy - we spend barely any time at all in Elendel. Instead, we're treated to the wonderful new city of New Seran and more time out in the Roughs border areas. (view spoiler)[And with the introduction of the people from the south, suddenly the Basin's world is about to get a whole lot bigger! (hide spoiler)] 
 I cried with joy at the end of the book, and then the epilogue completely took me by surprise. WHAT AN ENDING. And forgive me my fangirling, but (view spoiler)[my ship is sailing!! My ship is canon! This literally never happens to me. My ships never go anywhere. But WAX AND STERIS!! I was grinning like a fool about Wax/Steris feels all day long. And I didn't even know I shipped Wayne and MeLaan, but when it happened I realized that it was a ship I needed in my life. (hide spoiler)] 
 Finally, as a postscript, Sanderson wrote that he's releasing a digital-only novella set during the original Mistborn trilogy called Mistborn: Secret History. EXCUSE ME WHILE I SCREAM AND FAINT AND CRY. I haven't seen available anywhere yet, but I'm guessing it's because the book is still technically not released yet. I have no idea how I got my copy early - I had it on hold at the library, and I got the notice that it was available for pickup on the 21st. Maybe it was a mistake, but hey, I wasn't going to complain!! 
 2016 Popsugar Reading Challenge: a book that's guaranteed to bring you joy