This book is very, very good. I read Leigh Bardugo's Grisha trilogy and loved, so I was pretty excited when I heard she was writing another two books in the Grishaverse. This book has completely new characters, and it takes place right after Ruin and Rising. 
 First of all, this book is written from six different perspectives, and yet somehow the story is not jumpy or at all hard to follow. The narration is not at all confusing, as each character has their own distinct voice. 
 Speaking of the characters, they're pretty awesome. The whole group consists of really diverse people, from a crippled thief to a moody nordic warrior. I can't pick a favorite character, but I will say that I really loved Inej. 
 As a Grisha trilogy fan, I liked learning more about Kerch and the politics of the countries in general, because they certainly make up a big part of the plot in this. 
 The plot itself was great. The cover promises a epic heist, and this book does NOT disappoint. There are no cheap look-it-was-actually-way-easier-than-everybody-thought cop-outs. But there are plenty of palace break-ins, explosions, and fights. The only disappointing thing about this book was that the sequel doesn't come out until September.