Count Your Hexes by Wendy Meadows

Was Daniel George an unfortunate victim of some dark magic, or some invisible revenge?

In the sleepy tourist town of Wickrock Bay, Maine, Mimi’s artifact and antique shop is a hit with customers far and wide, especially crotchety next-door cafe owner Daniel George, who likes to duck into the shop often to spot what Mimi has in her collections. But, after three Wickrock Bay citizens rub Daniel the wrong way, in one form or another, the man moves to take action against them.
Only for him to turn up mysteriously dead.
Wickrock Bay Police Chief Robert Thompson, and soon along with his crush Mimi, are immediately on the case. But Mimi also has to be cautious, because the object used to murder poor Daniel had come from her shop. Wickrock Bay may be a small, cozy seaside town, but tongues could wag if enough people find this out.