‘Girls and boys,’ says the teacher. I have a question for you.’ All the children sit up straight. ‘Who,’ he asks, ‘is coming to town on Sunday?’ No one knows the answer. ‘On a boat,’ says the teacher. Erm... Hmm… ‘With his Piets,’ he adds. Now everyone knows: ‘Sinterklaas!!!’

Minako is on holiday with her parents. In Amsterdam, they are staying at a very large hotel in the heart of the city. There are mirrors all over the building. At breakfast, she sees four sad little boys who look exactly the same – oh no, there are only two! One set of twins at breakfast and one set in the mirror. The twins just turned six. Their grandmother got them a dog, but he ran away. Minako decides she’s going to help find him. But how do you find a very small dog in a very large ho...