So... 
 Where to begin? 
 There's so much to say, and I have no clue how to say it, which is bothersome. 
 I could try to use a gif to sum up my feelings, but I'm really not that sort of reviewer. I guess... 
 I'll just start typing and hope it all makes sense in the end. 
 Firstly, this is Steampunk. I love Steampunk (The Airship in my name probably was a hint,) and I find books that explore this genre admirable. Usually. Just not when they're poorly written. The Legacy of the Clockwork Key does not wow one with its literary brilliance. It had some neat Steampunky gadgets, and honestly, I think that they were the only redeeming factor. 
 The gears and gizmos were truly remarkable. The Minotaur, Icarus' Wings, Machines, Carriages, and Leviathan were all very cool, and I enjoyed reading about them for their own sake. The creations and the Amusementists were really the only things I liked about The Legacy of the Clockwork Key. 
 Now that I've acknowledged the best, I'm afraid I need to stick my hands in the mud of the novel. Sadly, there's a lot of mud. 
 Firstly, it was predictable. Very predictable. Just once, I'd like to not see the twists coming. And just once I'd like to not have a boring love interest who from the beginning of the novel fits the stereotype of: "Orphaned boy who is kind of surly, and strong, and protects the main girl always." Not cool. 
 Secondly, it was dull. There are 403 pages in this book. Things only get exciting for about the last hundred. Oh, there's talk of all the danger and how there's a murderer, and a mystery, but nothing actually happens for ages. 
 Thirdly, the characters weren't deep, or interesting, or particularly relatable. 
 I'm very disappointed, and saddened. The truth is, this book had a lot of potential. The premise of the secret society of the Amusementists was awesome. The house stuck in time (though that was never really explained....) was dark, and reminiscent of Great Expectations. Bailey had a lot of good stuff to go on, she just turned aside and followed the path of predictability, boredom, and flat characters. 
 ...But the cover was pretty!