Academy of Researchers. Feather lime. Book 2

The second book in a unique adventure series based on real travel and research by National Geographic! Cruz Coronado, along with other students of the Academy of Researchers, embarks on a study trip on the steamer Orion. Driving a submarine, rescuing whales, testing the latest developments of scientists - such practical classes can only dream of! However, for Cruz, the main task in this journey is to find a fragment of the formula invented by his mother. He must decipher the encrypted clue and go to the shores of Norway and Iceland, where not only new discoveries but dangers await him, because his every step is closely monitored by the agents of the "Nebula" «