Diamonds Through and Through. In continuing the Diamond series this book centers mostly on the 'bottom four', Caleb, Colt, Cathy and Cristy. More action and, of course, love scenes. The 'bottom four' of the Matthew's children, Caleb, and Colt (mirror twins) begin a home building business near town. Cathy and Cristy (twins) branch out on their own leaving the family ranch and establishing their own law firm in town. Each of the four think they're too busy for a relationship yet, we'll see about that! Despite some ups and downs, and some sadness, love wins out as a true romance novel dictates.