Catching Up with the Rainbow This book is about the Path of Knowledge. That he is waiting for everyone and calling everyone. The fact that he is open not only to exceptional personalities - anyone who heard the Call and responded to it can be on this Path... Arriving in Naryan-Mar on a business trip, geological prospector Alex meets his institute friend Vitaly, whom he has not seen for many years. Vitaly turns to Alex for help - to find a notebook with notes that he began to keep since his student days. After a single conversation, the friend strangely disappears, leaving only a farewell letter... Alex goes to the tundra in search of a mysterious...