Iksel Films has been commissioned to create a teaser for "The Paris Treasure Hunt", a summer event organised by the Paris city Council and Ma Langue Au Chat (www.malangueauchat.com), to present the city in a different way. This outdoor game, imagined by Ma langue au chat, gathers every year from 9 to 12 thousands participants. In a world of enigmas, one learns about history, trains his logics and, if clear-sighted enough, wins prizes. This is a way for the Paris city council to revive people's interest in its heritage.