Escape book - The secret code of the Great Vault

Lia is a member of a secret brotherhood. She can "break into" the minds of others, the place where everyone keeps their memories and secrets. Lia and her friends protect these secrets, but the work they do is not without risk. Their leader, Andrew, has been in a coma for months. They must find out what secret he's hiding in his head as quickly as possible, because he's deteriorating rapidly. Solve the riddles at the end of each chapter to find out where the story continues. Otherwise, you'll be trapped forever in the twisting, treacherous world of Andrew's mind. Also read the Escape book in which Lia has to prove she's truly a skilled burglar.