Masters of Death - Olivie Blake

When Viola Marek hires Fox D'Mora to deal with her ghost-infested mansion, she expects a competent medium. But unbeknownst to Viola, Fox is a fraud - despite being the godson of Death. As the mystery unfolds, Viola and Fox are drawn into a quest that neither wants nor expects. And they'll need the help of a demonic personal trainer, a sharp-voiced angel and a love-stricken reaper. And it transpires that the difference between a mysterious lost love and a dead body isn't nearly as distinct as you'd hope.