Red, White and Blueberry Murder — Susan Gillard

When Heather Janke hears that her oldest and most faithful customer, Eva Schneider, has been bonked on the head and is in hospital, she's shocked to the core.

Especially when she discovers one of the main suspects is her newest assistant, Ken. With nothing but her eccentric puppy dog, Dave, and her burning desire to help put Eva's attacker behind bars, she sets out on another sleuthing endeavor, determined to find the truth. But Heather has more to deal with than just the case: she has to balance a busy Donut Delights with the busy season in full swing, as well as the plans for her impending nuptials to her handsome detective fiancé, who is less than impressed with her extracurricular activities.

Heather must get to the center of the mystery, but this one might turn out to be deeper than a donut hole.