On 2 October 1535, Jacques Cartier reached the island of Montreal. The village he discovered, Hochelaga, is a real, fortified city of nearly 3,000 people near a mountain that Jacques Cartier called Mount Royal. When the following year he returned to Europe, he abandoned ship, the Petite Hermine… With your team of explorers, you will discover a secret entrance that might offer the answers to these questions … But will you be fast enough to find it in time before it disappears forever along with its mysteries?