A tale about the dust-dwarf Celest¨ªn and his friends, with whom he journeys through a mysterious basement for seven days. One morning, Celest¨ªn finds out that his mother, father and the rest of his relatives abandoned him. For a while, he is sad, but then he decides to go look for them and to bring his friends Moth and Spider on the search. During their seven-day journey through the mysterious basement, they experience exciting, funny, but also mortally dangerous adventures. There are numerous fights and one wedding. Celest¨ªn visits the barbarian world of the Saucers, the terrible Country of Sadnesses, the beautiful Crystal principality, the fun flea circus and also a terrifying black castle.