Captured, Escape, Repeat (The Sleuth Sisters)

In Book 7, Retta and her FBI agent boyfriend stop in Green Bay, Wisconsin, for the night, at which point Lars disappears. Desperate, Retta calls in sisters Faye and Barb. As they follow leads, they run into three sisters who might be future versions of them: Betty, a sweetheart who loves the Green Bay Packers; DeeAnne, a dramatic type always in acting mode; and Lydia, a business-like grump. Though they say they don't know where Lars could be, something at their antique/vintage store isn't right.Soon Retta is captured and held prisoner. She escapes, is caught, and escapes again...and again. Barb and Faye search frantically for her across the wintry landscape, with Styx the Newfoundland as their clumsy-but-dedicated ally. Success had better come soon, since the plan is for Retta--and anyone else who gets in the criminals' way--to die.