Judith Miller & Tracie Peterson 
Fragile Design (Bells of Lowell Book #2) 

Book 2 of The Bells of Lowell. The mill town of Lowell, Massachusetts, beckons Arabella Newberry when she decides to flee the life of the Shakers. There she finds the independence she seeks and a greater purpose as she works for educational reform. But Lowell, plagued by ethnic strife, seems no longer a safe haven but rather a danger when several girls go missing. As rumors and conflict invade the industry of the mill, Arabella struggles with her own heart as two men vie for her love.