Changeless is a great follow up to Soulless. The characters are so much fun!
Alexia cannot stay out of trouble. She's like a flashing neon sign that says "Here's trouble!" She's so funny, and doesn't let little things ruffle her feathers. Although I can't stand her sister. She is VILE! The confrontations that Alexia gets herself into are comedic. I love the reactions she has.
There is definitely action in this book. There are dirigible rides, fights, power plays, and then the Scottish clan of wolves. Those folks are a hot mess.