The way this book starts out makes you feel that it's a reverse Cinderella retelling - Instead of the daughter with an evil stepmother who goes to the ball glamoured to meet the prince, it's the nephew (Ash) of a cruel uncle who goes to the masquerade ball glamoured to meet the princess (Iris). But that's about as much "like Cinderella" as it gets.
Iris is cheeky & stubborn with a huge heart and desire to help those in need. Her parents are fearful and worrisome and keep her restricted to her castle, but that won't stop her from reaching her goals as she plans away.
Ash wants to get out from underneath is cruel uncle and belittling cousin. They don't treat him well and he really doesn't have anyone left to go to except an odd friend named Myrtle who encourages him to go with her to her homeland. He, however, must fulfill his fathers dying wish to remain with his uncle until his will is read - not quite 18, Ash just has to wait it out.
Ash has only ever seen Iris once, without knowing who she was and was instantly drawn to her. With his uncle and cousin being invited to the ball hosted by Iris's parents to find her a suitor, they insist it will be Ash's cousin who wins her hand. When he realizes Iris is the princess he's been longing to meet, he, with the aid and help of Myrtle, makes his way to the ball on his own. A chance meeting with Iris leaves them both desiring more, but something happens that interrupts their time together and must separate.
After a while, Ash learns that his father wanted his will read shortly before his 18th birthday and coming sooner than expected, he learns his father left him behind something that'll change his life, but he doesn't know it yet. Exploration of his fathers gift leads him unexpectedly entering the fae realm and starts him on a journey to get answers. The Princess has made her plans and followed through to attain her goals, but gets kidnapped mysteriously. When Ash hears about this, he knows what he must do to save Iris!
With the fae realm and its many courts, magical creatures, and royal balls this book is easy to get sucked into. It was hard to put it down and kept me engaged the whole time. There is some action along with mystery and great worldbuilding with very unique twists and concepts.