Martin Luther's Zurich withdrawal and disappearance become the pivot of Xavier March's reconstruction of a threatened conspiracy. The movement of a numbered box, a brief signal sent from Zurich, and Luther's suspected return to Berlin link a secret meeting among Josef Buhler, Wilhelm Stuckart, and Luther to the deaths of Buhler and Stuckart. Yet the account remains a reconstruction: March can infer what Luther did and why he vanished, but the contents he carried away and his ultimate fate remain unknown.

The planned defection

March's reconstruction begins with the Friday meeting at Buhler's villa. He initially places it on April 11, then corrects the date: Stuckart had gone to Bülow-Strasse the previous day, April 10, and noted the number of the telephone booth opposite Charlotte Maguire's apartment. At the villa on Friday, Stuckart, Buhler, and Luther faced a threat severe enough to make them contemplate defecting to the United States. Stuckart described how to proceed. They did not trust the American Embassy in Berlin, which they believed Kennedy had filled with appeasers, and needed a direct channel to Washington. Stuckart proposed Michael Maguire's daughter as that link, and the three agreed.

The sequence then moved quickly. On Saturday, Stuckart telephoned Charlotte to arrange a meeting. On Sunday, Luther flew to Zurich. March rejects the apparent explanation that he had gone to collect pictures or money: the conspirators already had ample money and pictures in Berlin. Instead, Luther's journey concerned something deposited in Switzerland during three visits between the summer of 1942 and the spring of 1943. The Zurich trip was therefore the retrieval of an older secret, not an ordinary flight to obtain assets.

The box and the signal

The bank's record gives March a precise chronology. The box was opened on July 8, 1942; December 17, 1942; August 9, 1943; and April 13, 1964. It had thus remained unopened for nearly twenty-one years before the last visit. The bank official notes that such a long interval is not unusual: some boxes remain untouched for fifty years or more. What makes this account significant is not the mere age of the deposit, but the abrupt final opening on April 13, which confirms March's guess that Luther had gone to Zurich at the beginning of the week.

March suspects that Luther sent the chocolates from Zurich airport on Monday afternoon, perhaps just before boarding another aircraft. He reads the parcel not as a gift but as a signal connected to the mission: its arrival may have meant that the task had succeeded, or that Luther had failed. The distinction matters, but March cannot settle it from the parcel alone. The object carries evidence of communication while withholding the message's exact meaning.

Return to Berlin and disappearance

Luther's wife supplies one part of the travel timetable. She remembers that he went out early on the preceding Friday, and that he returned around two that afternoon saying that something had happened and he had to spend Monday in Munich. He planned to fly on Sunday afternoon so he could stay overnight and be up early. He did not tell her what the business concerned, treating it as private. Her account establishes what Luther disclosed at home, not the purpose of the trip March is trying to reconstruct.

March considers whether Luther stayed abroad after opening the box or returned to Berlin on Monday afternoon. He inclines toward a return. The previous morning's call to Buhler's villa—“Buhler? Speak to me. Who is that?”—sounds to him like Luther, and he assumes Luther posted the packages shortly before boarding a flight at about five. In March's estimate, Luther would have landed in Berlin around seven and then disappeared. The call, the parcel, and the inferred flight form a plausible chain, but the passage presents it as March's working theory rather than independently verified fact.

That theory also makes the timing catastrophic. By the time Luther had made the withdrawal, sent the signal from Zurich, and landed in Berlin, Buhler and Stuckart were already dead. March imagines that Luther therefore chose to disappear, taking with him whatever he had removed from the Swiss vault. This explains why the men at the villa could no longer carry out the plan they had discussed, while leaving open whether Luther's disappearance was escape, concealment, or something else.

The investigation's unresolved center

The Zurich records establish four openings, a long period of inactivity, and a final visit on April 13, 1964. They do not disclose the box's contents or identify who opened it on each earlier date. March's reconstruction supplies a motive for Luther's trip and connects it to the conspiracy, but it cannot turn inference into proof. The object retrieved remains unnamed, and the disappearance that follows prevents March from checking his interpretation against Luther himself.

This gap gives the episode its investigative force. March has dates, a telephone call, an airport parcel, and accounts that only partly overlap; he must arrange them into a sequence while recognizing that more than one reading remains possible. By the end of the reconstruction, he tells the sleeping Charlotte that they have been looking in the wrong place. The conclusion does not resolve what Luther carried from Zurich. It redirects the inquiry toward the concealed evidence and the route by which the conspirators hoped to reach Washington.