I'm currently reading Spell Booked by Joyce and Jim Lavene. This book is the first in the new Retired Witches Mystery series and will be released December 2nd.
The magical powers of Molly, Elsie, and Olivia are fading and they need to find witches to replace them so that they may pass down their spell book and retire to Boca Raton. They have their eye on recruiting Dorothy, a young librarian who doesn't even know she's a witch when tragedy hits. Olivia is murdered and their spell book stolen. Could another witch be killing witches to get their powers? Will Molly and Elsie be able to stop a powerful witch? Will they be able to retire to Boca with their family none the wiser of their magical abilities? Will they solve the murder of Olivia? Or die trying?