Cui Feng—Daniel F. Stein

Cui Feng’s relationship with Daniel F. Stein is established as a sustained professional arrangement: for five years, Cui had employed the services of an American surgeon living in Shanghai. When the investigation identifies Stein and discovers him trying to leave the country with computer disks, that employment becomes a concrete link between Cui’s clinic and a possible escape from scrutiny. The evidence raises suspicion about Stein’s role but does not establish what the disks contain or prove his participation in specific crimes.

The surgeon Margaret suspects

The connection first takes shape through uncertainty about the identity of the surgeon. Nien Mei-Ling asks Margaret Campbell about her thought that the surgeon might be American. Margaret answers that it is only a guess: the person could instead be Chinese and trained in America. The distinction matters to the investigation because nationality and training are possibilities to check, not yet confirmed facts.

Nien Mei-Ling turns that uncertainty into an operational lead. She proposes checks at all departure points and says that, once the clinic employee list is available, investigators should be able to identify whom they are seeking. Li Yan agrees. Nien Mei-Ling leaves to put the checks in motion, connecting Margaret’s tentative hypothesis to a practical search for the surgeon.

Cui’s long-term arrangement with Stein

The employee list helps investigators narrow the search. Qian tells Li Yan that Cui Feng has employed an expatriate American surgeon for the last five years, and that the surgeon has lived in Shanghai since the early 1990s. Qian identifies him as Daniel F. Stein, aged fifty-eight, married to a Chinese woman described as half his age, and reports that he is not at home.

These details give the earlier speculation a definite, if not complete, answer: the surgeon being sought is an American who has spent years in Shanghai, not merely someone who may have trained in the United States. The duration of Cui’s arrangement also distinguishes Stein from a passing visitor. He is presented as a recurring professional presence in Cui’s orbit, although the available information does not explain the precise work he performed or the terms of his employment.

The attempted departure

Stein’s absence from home makes the departure-point checks urgent. Li Yan asks whether the airport and docks have been checked; Qian replies that they are being checked then. The next report comes from Detective Dai: officers at the airport have picked up Daniel Stein as he tries to board an Air India flight to Delhi. He has a briefcase full of computer disks, which Detective Dai says may contain interesting material.

The arrest at the airport changes the relation from an investigative lead into an immediate evidentiary opportunity. Stein’s attempted departure and the disks invite questions about what he knows and whether the material bears on the clinic. Yet the report leaves those questions open: the disks have not been described or analyzed, and no conclusion about their contents is given. Cui’s years of employing Stein establish their association; they do not, by themselves, settle Stein’s guilt.

Significance within the investigation

The narrative builds the connection in stages: an uncertain guess about the surgeon’s nationality, a plan to check departure points, a name drawn from the clinic’s employee list, and finally a specific airport interception. Each step sharpens the pursuit without disclosing the contents of the briefcase. Stein’s attempted flight toward Delhi supplies a strong turn in the investigation, while the disks hold out the possibility of further evidence. The relation is therefore both a documented employment tie and a developing line of suspicion, not a completed account of what either man did.