Opal fire / Barbra Annino.

Enhanced descriptions from Syndetics:

Stacy Justice is just your average green-eyed, redheaded, twenty-something witch who would rather focus on her job as a reporter than practice the crazy magic her grandmother and great-aunts are into. She's perfectly content to spend her free time hanging with her cop boyfriend and her gassy Great Dane and helping her cousin Cinnamon run the Black Opal bar. But when the Opal goes up in flames, Stacy may need that magic after all.

The blaze was arson--and Cinnamon is the prime suspect. Determined to clear her cousin's name, Stacy digs deep into the crime and makes a shocking discovery amid the rubble. It's clear someone wants her dead--and she'll have to dodge everything from angry motorists to exploding chickens to survive. It's time to dust off her so-called magic skills. But will they be there when she needs them?

With its strong, sexy heroine and her razor-sharp wit, and its collection of eccentric small-town characters, Opal Fire introduces a bewitching new mystery series.