For all the students participating in this project, the identity of their partners was kept secret... They have to discover it by solving puzzles and rebuses. If they find the right padlock combinations, they can open the boxes, where the project partners hid information about their school, students, country, small presents - candies, postcards, some 3D printed things for the next steps of project and the address + access information to the project Twinspace. 

Each school receives several boxes from different European countries (prepared by the partner schools).