De Club van Sinterklaas: Geheimen van de Sint (2022)

The girls from KADO find Sinterklaas' magical diary, which contains all kinds of secrets of both Saint Nicholas and all the Petes in the castle. It also contains a route to Sinterklaas' secret room with magical objects. When the Piets discover that their secrets are in this diary, they secretly tear out pages. And that causes big problems.