Fielding, reeling from the death of Severine, knows he has more to do—he must avenge Severine's death. Fielding unmasks the traitor and all the Berlin mysteries are explained.
Fielding feels threatened and drops out of sight. Three urgent questions preoccupy him - the Beirut photograph; Severine's obsession with Udo Hoff; and the date - Sunday, August 13th.
Fielding's clever plan seems to be working. The Russians are agitated, running scared. A date is mentioned for the first time - Sunday, August 13th. What will happen in Berlin on that day?
Fielding's Berlin life is unraveling; he decides to "go rogue" and provoke the Russians into retaliating. At the same time he is now being blackmailed over his affair with Severine.