The Extraordinary Journey. Volume 1

Two children from a rich family, who spent their childhood in a boarding school, return home to a huge family mansion. They are confused, but they are gradually getting used to their new life. However, their happiness is overshadowed by a secret: their father, Oleksandr, has gone missing. The children decide to investigate his disappearance, and their adventure takes them into a mystical world full of inventions and secrets.