| Auteur | Forbes, Colin |
| ISBN | 9781416511236 |
| Uitgeverij |
Commander Buchanan of Scotland Yard, Tweed, Deputy Chief SIS, visits Mrs Bella Main, formidable matriarch controlling the Main Chance, a private bank. Bella tells Tweed that she has refused an offer from Calouste Gubenkian, a ruthless and villainous man. Within days of their visit Bella is murdered. Tweed returns to investigate the atrocious act.
