Even if you don't Believe
I normally am not drawn to supernatural fiction, or to religious fiction. When I started the first book in this series, I didn't realize what it was. But from the first chapter of Book 1, I was hooked.
One In a Million (#1), and A Million to One (#2) should be read before One Plus One. I haven't written reviews for those yet, but I would rate them as 5s, also.
Fabulous series, not for the faint of heart, nor for those who tend toward nightmares, but a fascinating take on good vs. evil, Heaven and Hell, and the world we all live in.