From Darker Days (The Darker Agency) by Jus Accardo:
A little sin can be deadly...
Jessie Darker goes to high school during the day, but at night she helps with the family investigation business. Cheating husbands and stolen inheritances? They're your girls—but their specialty is a bit darker. Zombie in your garage? Pesky Poltergeist living in your pool? They'll have the problem solved in a magical minute. For a nominal fee, of course...
When gorgeous new client Lukas Scott saunters into the office requesting their help to find a stolen box, it sounds like a simple case—until the truth comes out. The box is full of Sin.
Seven deadly ones, in fact.
They've got five days to recapture the Sins before they're recalled by the box, taking seven hijacked human bodies with them. Easy peasy—except for one thing...
There's a spell that will allow the Sins to remain free, causing chaos forever. When the key ingredient threatens the life of someone she knows, Jessie must make the ultimate choice between love and family—or lose everything.