Monsoon- book 2 of The Angelic Wars
(AVAILABLE IN THE ANGELIC WARS SERIES BOOK)
And vile creatures were born of man and angel, those monsters deemed Nephilim. With the Watchers' betrayal, humanity's destruction is possible. What can one angel do about it? Not much, if I'm going to be honest, but the Archangels have a plan. With the promise of a great flood that would not only destroy the Nephilim but also humanity, the fate of my charges is sealed with a watery doom, but I won't stand for that. They call me Ambriel.
With the defeat of Lucifer's horde, the escaped Watchers plan their revenge. Dumah and Shamsiel made their scheme clear enough, we're supposed to create as many Nephilim as we can in order to destroy mankind. But there's not much I can do with an archangel on my heels. I'm really not that bad of an angel if you give me half a chance, the angels have painted me like a criminal, just like all the other Watchers. They call me Gadreel.