Don't worry! The 4 star rating doesn't mean it's not all good. It's well-written and it was a pretty nice story! It just didn't have that BANG ending that I was expecting because it is the last book. 
 While reading this I kind of got nostalgic with the first three books because if I were to be honest, I feel like the story of The Heir to The Crown, was kind of "rushed" like The Crown is really thin so there wasn't much. I enjoyed reading the original selection series more although this wasn't bad. 
 I'm happy that Eadlyn found the light, gone are the days where she was a spoiled brat. Hahaha but then again it's kind of normal for her to be one, being in the royal family and all that, so I don't blame her. 
 Maxon, Aspen and America are still the same as ever even in the final instalment of the series so it was comforting to read about something so familiar in my head already. 
 A huge thank you to Kiera Cass <3 I'm looking forward to her new stories :) 
 PS 
 ASPEN LEGER I WILL ALWAYS LOVE YOU