Detectives from the Third Gymnasium and the Secret of the Medallions

Deprived of rank and sentenced to hard labor, staff-captain Anatoly Chvanov—criminals call him Tolyik the Bold—on the way to the penal colony discovered that his father had hidden one hundred thousand rubles before dying, encrypting where they were located in two medals. One of them is around Tolyik’s neck; the second is in St. Petersburg, with his brother, the moneylender. Fleeing from the hard labor, Anatoly Chvanov came to his brother. The brother tried to stop him, but the criminal mortally wounded the moneylender. Accidental witnesses to the killing were the inhabitants of St. Petersburg’s “underbelly”—Fros’ka the bait-and-hook maker and her son Keshka. The detective police arrested Fros’ka, accusing her of the murder. Trying to save his mother, Keshka makes the acquaintance of the son of a famous advocate, a schoolboy Volodya Tarasov, and his classmate Fedia Lipov…