Dianna and Samkiel are enemies older than time, but they must put aside their differences and work together in the hopes of saving both their world and every realm in between.

But over ten thousand years, even the most staunchly loyal warriors of the Imperium can fall from grace, and the Dark Angels guard their own murky secrets most carefully - only Supreme Grand Master Azrael knows them all. The harder we work to get to that four-letter L word, the more my heart bursts when we finally get there. The characters are memorable, and one, in particular, has an attitude that reminds me of Aelin from Throne of Glass!And then we have Liam, also known as Samkiel and the World Ender, and boy, could he not be more different personality-wise, but they both are broken in their own way.

Many years ago, Dianna saved her dying sister by giving her life to a terrifying monster in the deserts of Erioa. Don’t be scared of the length of The Book of Azrael – once you start reading it, you’ll fly through it and not want to put it down! When Liam and Dianna meet, the two must question their loyalties, their prejudices, and their ideas of who the bad guys really are. There were also random changes in font size as well as some words and phrases that were randomly in bold, which was very distracting. this is EXACTLY what i expect when i see a book marketed as “slow burn” — THE SLOW BURN WAS ABSOLUTELY DELICIOUS IN THIS BOOK!The plot was very engaging and kept me hooked on the story of Dianna and Liam…the emotional and profound relationship development between the MCs was just incredible. Like…you’ve spent all these months looking for this book, and you know Kaden plans to use it to destroy the world…and a kiss is where you draw the line? I didn't remember how long we talked, but somewhere amidst her laughter and smiles, I decided I would rip the whole world for her. Otherwise, this book was fast-paced, interesting, and full of dynamic characters (including the side characters) that made you want to live in their world forever.