Push open the doors to the magical Harry Potter world in Strasbourg! An evil spell has sealed off access to platform 9 ¾ of King's Cross Station! Access to the Hogwarts Express is now in the European capital... It's up to you Muggles to thwart this evil spell by finding access to the platform! Head to La Petite France, located in the historic centre of Strasbourg, to start this magical quest. But beware: the train will pass by in 2 hours! Go to each of the houses indicated on your smartphone and try to collect 4 code words within the time limit to find the location of the platform. They will also allow you to collect key clues to be put together to find THE code word that will validate your passage in each house. The programme includes puzzle solving, meeting wizards and bonus cauldrons. The Hogwarts Express will leave in 120 minutes. Tick tock tock... This game is accessible to all and multigenerational. You have the possibility to play in team, for that only one person of each team will have to enter the identifier and the unique code on his device. Then you can start the game simultaneously. You will be able to compare your points and the time obtained at the end of the game. Please note: this activity is an outdoor escape game where the plot is not directly related to the city (although it is held in attractive places in the city center). It is a game on a given theme and not a guided tour of the city.