We Will carry out a collaboration project between 2nd to 6th grade students (8 to 12 years old) and students from other collaborating schools through a "MYSTERY meeting" game. We promote oral skills in English language, using “the Mystery meetings” as a methodological resource, favouring intercultural competence and teamwork. Mystery meeting is a 45 minute critical thinking challenge; our classes join "video meeting" with another class somewhere else in the world. Our students' goal is to guess the other school's location (country, state, city, school name...) before they guess yours, by asking yes and no questions. Once they have found out the other's school location, they start to discover more information about the city or region from their partners: food, traditions, music, art, flag and symbols,... All of these through video conferencing, asking questions, pictures and presentations.