Sweet - The Murphy Blackwell Chronicles, #2

It's a world where danger and spells often entwine, and Murphy Blackwell figured shedding her role as a chaos witch meant her troubles were over. But becoming a Summate, one who wields every variety of power in the craft, has unveiled some new-and daunting-challenges. A love spell gone haywire, an ominous spirit's warning of a rival coven's deadly intentions, and a malevolent scheme poised to plunge the world into anarchy mark just the start of her worries.
As Murphy's very life and the fate of the world hang in the balance, she must draw upon her newfound Summate abilities and rally the strength of the entire Lughaidh coven to navigate the treacherous path ahead.