Saving Hades

Bellatrix is a 18 year old girl living in London in the 1800's. Nothing pops out at first glance, but underneath all the beauty and niceties, lies a warrior, trained by the best.
Usually, she is hired by the most wanted criminals, or important people who need protection, but when she finds out that the Greek gods are all real and need her help, everything in her world is turned upside down. All of the gods lives are in danger, but Hades life is particularily at high risk, so she must gaurd him most.
Keeping Hades safe, though, is much harder than expected, and in all the stress, she finds herself getting close to him...very close.