The mystery of black gold. Gatti A., Pierddomeniko B.

If you once find yourself in Amsterdam, then during a walk through the channels, you may notice... Although, most likely, you will not notice at all. The scheme of the intrigue is a completely ordinary house. But inside lives not an ordinary family. You have to get acquainted with the family of the intrigue, each member of which is a first -class spy.

A new exciting adventure. This time the case will touch the project “Triple Diamond” - a program of drilling oil wells of the North Sea. Fantastic reincarnations, chases and tricks - the intrigue family will do everything to prevent an ecological catastrophe.

The exciting detective from the author of the popular cycle “Cats-Detectives” Alessandro Gatti and the creator of the world bestseller “The Secret Diaries of Ulysses Mura” Pierddomeniko Bakkalario.

for secondary school age.