Agatha Misteri. The cipher of smugglers

You certainly cannot call Larry an excellent student. What is an excellent student - if the matter goes on, he is facing a deduction from the school of detectives. It is urgent to improve his catastrophic grades, and for this Larry is entrusted with another investigation. The owner of the luxurious Berlin hotel abducted the most ordinary volcanic stone! It would seem, why, for the sake of a robber, to get to a penny booty? The hostess of the missing stone turned to the Eye of the Internet only because she valued them as a memory of a father. The team of detectives, led by Agatha and Larry, settled in the trail, soon finds out that the father of the victim had no cloudless past. And that in reality the abducted stone is only part of a very old story about a cunning cipher, Berlin wall and old friendship