And here is the UK cover to The Lost Prince:
This is very different from The Iron Fey covers, which the US cover has stuck with as you see below:
Now, out of the two, I much prefer the UK cover. I just prefer it. I think it'ss because of the silver and the magical edge to it whereas the US cover feels a bit... you know... LOOK WHO HIT PUBERTY! It feels a bit like they using the age old "Sex Sells" and my reaction is "NO! You have a fanbase, you don't need to use this tactic!!!"
Now, I do need to read The Iron Daughter and The Iron Queen, but am very intrigued over this. And, to wet your appetite, here is the US book trailer... Enjoy.