A witch's cat mystery, book 2 : By familiar meansDelia James2016

In the latest from the author of A Familiar Tail, a witch and her familiar find trouble brewing at a coffee house.
After discovering her mystical heritage—and being adopted by furry feline familiar Alistair—artist Annabelle Britton has decided to make picturesque Portsmouth, New Hampshire, her new home. Now, she can take the time to figure out her new abilities and welcome her grandmother, who is visiting Portsmouth, and her old coven, for the first time in thirty years.
But being a witch doesn’t magically put money in the bank. When she’s hired to paint the murals for a new coffee house, it seems like a wish come true. But then a series of spooky sounds and strange happenings convince the owners that their new shop is haunted. They want Anna and her coven to evict the restless spirit before the grand opening.
Annabelle is certain the haunted happenings at the shop are just hocus pocus. But when her search reveals hidden smugglers’ tunnels beneath the shop—and a dead body—Annabelle, Alastair, and the coven suddenly find themselves in a cat and mouse game with a killer...