Grey Magic (Grey Magic: Fire) (Volume 1)

No one appreciates the irony of her situation more than Raven Kane: she’s a burnt-out witch. Raven is a hip, hexing-and-texting sorceress – or at least, she used to be. Now her ancient timber house is falling down around her, and the bank wants to repossess it. Nothing would make her cantankerous neighbour happier than seeing Raven and her messy menagerie out on the street. To add to her stress, the reckless Wicked Witches are causing mischief and it’s her job to reign them in. Worst of all is that her magic seems to be fading. Just as everything seems to be too much to handle, there’s a knock on the (splintering) door. A not-unattractive man appears in her life: not to save her, as a fairytale would have you believe, but to arrest her for the murder of one of her clients. It wouldn’t be that bad for Raven, except that she knows she's guilty.