1970: A young mathematician, having just finished his studies and military obligations goes to the island of Serifos for the first real vacations in his life. There he meets Ernestine, a young girl of his age and falls in love with her. The girl has a mysterious story in which the “four colors problem” (solved in 1975 by computer) is involved. The life and unlucky loves of her mother and grandmother, in which the events of the first half of the 20th century and the four color problem are also involved.\

Psichogios, 2024 (1^st ed. polis, 2012), 176 p.