Emily McKay’s “A Bride for the Black Sheep Brother” is a book in the At Cain’s Command series. The story’s main character is Cooper Larson, a wealthy snowboarder and Hollister Cain’s illegitimate son. As his ex-sister-in-law, Portia Callahan, claims to have found the missing Cain heiress, she pleads for his help, but he’s not motivated by money. He’s been holding back his love for Portia for a long time. The novel examines the concepts of love, family dynamics, and personal growth.