Oh where do I start? This book was so so good to read and I couldn't stop reading this book for a bit. I rated this book 5 stars because it was really an amazing experience.

A big thank you to Metaltail Press, Netgalley, and S.E. McPherson for giving me this ARC in return for my honest review!

I planned on reading this book slowly over time and somehow ended up reading it all in one sitting.

A King's Trust follows Prince Beauregard - the second son who was never meant (and never wanted) to take the throne. When his brother dies suddenly, he finds himself thrust into the role of Crown Prince with more responsibility and paperwork than he ever wanted, a deadline to find a wife worthy of helping him rule, and the sinking realization that he'll never get to truly be with the man he loves. Sweet, trusting, too-good-for-this-world Beau decides he wants a wife who is honest as well as politically minded. Unfortunately, the only noblewomen who fits the bill absolutely hates him.

Pros:
- The tension and longing between Elias and Beau is absolutely top notch.
- Lady Pennabrook is completely convinced that Beau is a lying, scheming, manipulator who killed his brother but watching her begrudgingly fall in love with him while fighting her feelings was so much fun.
- If you like political intrigue, mystery, secret dealings, and unique magical artifacts - you will like this book.
- If you like found family you will like this book.
- If you love absolutely delightful, good-hearted princes who only want what's best for their people, but are also a little bit clueless - you will love Beau.

Cons
- Make sure you read the trigger warnings for this book, there are some explicitly violent scenes as well as discussion of self-harm.
- There are a number of things that were started before Beau’s brother died and Beau has to deal with the aftermath (I sadly can't describe them without spoilers) but we don't really see a resolution to them. I think I could make an educated guess about what was going on, but there was never a real “this is what happened” moment which was a little frustrating.
- If you like fantasy that is fast paced and action packed, you might not like this book. There are a lot of court politics, paperwork, and balls with the occasional action scene sprinkled in.
- If you like detailed and intricate magic in your fantasy books, you might not like this book. It sort of felt like the magic in this book was an afterthought and you don't really read about it until half way through.
- If you're not into poly romance you might not like this book

Overall, I loved Beau, I loved the romance, and I thought the book was fun and easy to read. I rated this book 3.5 stars, rounded up to 4.
There are few explicit intimate scenes, so I would rate this book a 2 on a spice scale.
I would definitely recommend this book!

I loved this book. It was so hard to put down. Beau and Elias's friendship was so fun to read and watch evolve throughout the book, they are so great together and Elias is such a great friend for the prince. I love the banter between Beau and Victoire, the amount of nicknames Beau gave her amused me immensely. I had so much fun seeing their relationship evolve throughout the book. Beau's found family at the Isle are the best people and I adore them, it sounds like there will be more books and if so I really hope to see more of them. I really adore how Ma took Beau in when he really needed her the most because his biological family just sucked. I really enjoyed this book and there's more to the series I will be ready to read them all.