First, as always, thank you to the publisher for the ARC in exchange for an honest review.

This book had so much going for it.  I'm an absolute sucker for a library setting, devils/demons and some excellent characters.  The Devil Makes Three had all of that and more.  I cannot emphasize enough how much I adored Tess and Eliot as characters.  They were so well rounded with very realistic flaws and ideals, and I was rooting for the both of them to overcome and find their way.  

The creepy elements were great.  It's YA so there's nothing too gruesome, but the spooky elements were fun without being too gory.  I think it's perfect for a teen audience looking to dive into the horror genre.

The pacing was a bit off though.  The beginning took a while to get going and the ending felt rushed.  Also the romance happened a little too fast.  

TLDR: It's a fun, creepy time that's good for the fall season.