Star Clocks. Deal with the Monster

Chasing a butterfly, the sisters Imogen and Mari, two very ordinary girls, discover a door in a tree that leads to a magical world… Stepping over the threshold, the girls will no longer be able to return! They are trapped! And neither a prince, nor a king, nor magical creatures can help them, only the MAIN VILLAIN of the kingdom! For he alone has the key to the Invisible Doors. Will the girls really have to confront evil and terrifying monsters to get back home? What will this adventure lead to?