Love story featuring mermaid named book of the year

Monique Roffey, announced as winner of the 2020 Costa Book of the Year for her novel, The Mermaid of Black Conchon (Ian Gavan/Getty Images for Costa Book of the Year)
Monique Roffey, announced as winner of the 2020 Costa Book of the Year for her novel, The Mermaid of Black Conchon (Ian Gavan/Getty Images for Costa Book of the Year)