Garfield played the role of lover to Olga to help Rowena Drake secure Mrs Llewellyn-Smythe's inheritance. The real codicil, written by Mrs Llewellyn-Smythe and leaving her fortune to Olga, had been replaced with a clumsy forgery, produced by Lesley Ferrier, to halt investigation for the real one, left in the pages of a large book. In earlier wills, Rowena Drake would inherit the bulk of the large estate. Lesley Ferrier and Olga Seminoff were murdered to conceal the deceit. Garfield's motivation was his narcissistic desire to construct another perfect garden with Mrs Drake's money on a Greek island that she has secretly purchased. Poirot muses that Rowena Drake might have met a similar fate to Olga as Garfield would have no use for her once he secured her money. Poirot intuits the link between Miranda and Garfield: Judith Butler is not a widow but a single mother, and, unknown to Miranda, Michael Garfield was her father. It was by chance Judith met him again in Woodleigh Common.