2,000 years ago, the sacrifice of Jesus Christ opened the gates of Heaven. Now, the Fallen seek the one child who's sacrifice will open the gates of Hell, allowing them to flood across our world and burn it to the ground.
(your hook starts here)
Laurel was once a killer, a soldier in an underground war against the supernatural. Now, she is middle-aged, a responsible single mother. But when she gets trapped between the armies of Heaven and Hell and her daughter is killed, Laurel's preciously ordinary life is shattered.
Laurel picks up the guns she'd sworn never to touch again and races to find the one child, (insert brief explanation taken from first paragraph here) to protect him from the schemes of demons and angels alike. But when the child is snatched, Laurel rushes in where even fools fear to tread, waging a one woman war on devil, angel, and any hand of man that is against her.
And not even God can help whatever stands in her way.
Perfect for the Easter season, you betcha.
Focus on Laurel. She sounds like kind of a kick ass girl. Less melodrama, more actual story.