When Callie Arden lands a job as personal secretary to the dangerously charming Demon Prince of the underworld, she expects late nights, impossible demands, and paperwork that could bite back. What she doesn't expect is just how hard it is to resist her boss's wicked smile—or how far she's willing to go to prove herself in a world where temptation is part of the job description. In an office where every contract comes with a catch, will Callie sign away more than her working hours?