From here on, there will be spoilers of Soulless, Changeless and Blameless. Be warned!
All in all, another one of Gail Carriger's masterpieces. Totally worth it, even if not her best work, simply because it leads to Timeless.
Oh, and I must say, it is NOT my favorite cover, right along with Soulless. My favorites would be Blameless and Timeless, definitely.