A novel adapted from the famous game Unlock ! 

You are Alex. With friends, fans of mysteries, thrills and adventures like you, you founded the Escape Geeks. For your second mission, an enigmatic "Circle of Fairies" has summoned you to the Père-Lachaise cemetery to put you to the test. The goal: to find out if you are worthy of helping them in their fight against Odal, a dangerous group of esoteric fanatics who want to take over the powers of Merlin the Enchanter. Solve the riddles to get out of the graveyard unscathed!

This game book is a great way to introduce youngsters to Unlock! adventures while experiencing a thrilling story! It uses the simple mechanics of Escape Books and Books You Are the Hero, while retaining what makes Unlock! so great: clever puzzles that test the reader's sense of observation and logic. Immersion is therefore guaranteed for players aged 10 and up.