Is a bundle of envelopes full of adventures for the entire family! Each envelope contains a letter and a mission card from a girl and a boy called River and Tom inviting your child to become a Secret Protector. In the letters River and Tom write about their adventure with real Nature Heroes they meet along the way. After the letter is read the family can go on their own adventure with the help of the Mission Card. While River and Tom are a product of our imagination, our amazing Nature Heroes are very much real! Once the missions are completed the family unlocks a secret QR code featuring a message from the Nature heroes!