This book actually really hit home for me. Not something I was expecting from a DC Icons book. Selina's sister is diagnosed with Cystic Fibrosis- if you don't know what that is I encourage you to look it up, it comes in many forms and is incurable. This whole story is centered around Selina trying to save her sister, to find a cure. It's not something you really realize until closer to the end, but I just enjoyed the story as a whole. As someone with a close family member who passed away from CF, this book really got to me at the end. All we want is for there to be a cure, and that may never come, but this book gives a bit of hope for that...