The Inheritors

Arthur Granger, the narrator and a failing novelist, is commissioned to write celebrity profiles in a suspicious journal. On a stroll he meets an otherworldly woman, who tells him she comes from a parallel universe where she’s involved in a conspiracy to take over the world. Arthur is drawn in by her charm and falls into the world of political machinations, which include a plot for Britain to colonize Greenland.
The Inheritors, published in 1901, is the first of three collaborations between Joseph Conrad and Ford Madox Ford. The book’s concept and most of the writing is attributed to Ford. Conrad served mostly as editor; he himself was writing Lord Jim at the time.