«The Black Hen, or the Underground Inhabitants» by Anton Pogorelsky is a story about a boy named Alyosha who, while trying to save his beloved hen, Chernushka, falls into a mysterious underground world inhabited by little people. After receiving a magical gift that allows him to manage his studies effortlessly, Alyosha encounters temptation and betrays the trust of the underground inhabitants by revealing their secret. As a result, they are forced to leave their home forever.