This paper delves into the ethical tensions present in Ann Cleeves' Raven Black through the lens of David Ross' The Right and the Good, focusing specifically on the character of Magnus Tait and his relationship with his mother. Ross' theory of prima facie duties—obligations that are morally binding unless outweighed by a more pressing duty—serves as a framework to explore Magnus' moral conflict. Magnus Tait, an isolated figure within the Shetland community, is deeply influenced by his duty to his mother that shapes his actions and perceptions. Ross' philosophy emphasizes that individuals often face conflicting duties, requiring careful moral reasoning to determine which duty takes precedence. In Raven Black, Magnus' sense of obligation to his mother—rooted in loyalty, care, and obedience—conflicts with his own needs and the expectations of the broader community. This paper explores how Magnus' duty to his mother becomes a source of internal conflict, particularly as it intersects with his loneliness and the suspicions cast upon him by the community. His sense of duty is further complicated by the harsh judgment of the society around him, which exacerbates his isolation and highlights the moral ambiguities in his character. Through the lens of Ross' ethical theory, Magnus' struggles are portrayed not merely as personal dilemmas but as reflections of broader moral challenges, where duty and the concept of right are constantly in tension. By examining Magnus Tait's moral conflict in Raven Black through the principles outlined in Ross' principle of prima facie duties, this paper offers a nuanced understanding of how a prima facie duty can both bind and burden individuals, especially within the complex fabric of human relationships.