In the summer of 1806, a young Orkney woman disguised herself as a man and signed on with the Hudson's Bay Company to travel to what was then called Rupert's Land. For a year and a half she hid her identity and her deception was revealed only when she was giving birth to a baby boy. In less than an hour, she turned from John Fubbister into Isobel Gunn. Very little is known about the real woman — her birth certificate, a few entries in the Hudson's Bay Company logbook, a line in the census, her obituary.