Bonsoir Lune is the author-illustrator of ten picture books, including Watermelon Pool which was an award-winning bestseller in Korea. Frances Cha is a former travel and culture editor for CNN in Seoul and Hong Kong. She was born in the United States, attended elementary school in Hong Kong and moved to Korea when she was 11. She teaches fiction at the Columbia University MFA program and lives in New York with her family. She is the author of the adult novel If I Had Your Face and the picture books The Goblin Twins and The Goblin Twins: Too Hard to Scare.