A Christmas adventure!

Poor mom just caught scarlet fever at Christmas, so siblings Anna, Dick and Julián, together with their friend George, return straight from boarding school to Kirrin. Tim the dog is overjoyed that they are all together again and are looking forward to winter fun with the children, which they will have to intersperse with catching up with the lessons under the supervision of the home teacher. On vacation?! Is it possible to experience at least a hint of adventure here, when the landscape is covered in snow and the sea is so rough that it is impossible to row to the island? Not according to George, and yet the Right Five are in for an amazing discovery! An ancient canvas with mysterious markings leads them to an underground passage, in which many secrets are hidden...

In the second story of the cult twenty-one-part series, which has already been filmed three times in Britain and has also been filmed in Germany since 2011, the tension is taken care of!