Returning to Morocco in the 1960s with the British Churchman’s Missionary Society (now Crosslinks), Kaye went to the south of Morocco to assess if medical work was possible there. Deciding that it was, she founded the Dades Valley Fellowship in 1963 and moved into a Kasbah. Over the years she would be joined by other women and together they provided midwifery and antenatal care, ran clinics, and organised yearly summer camps in Agadir. As work expanded, a second station was opened and short-term teams also provided additional workers.
Kaye came back to the UK in 1974 to help care for the aunts who had brought her up but continued running the mission and promoting its cause. She was also a gifted artist.
By 1982, the number of workers had dwindled until it was decided that the last missionary, would join NAM. The DVF thus merged with NAM in 1983.
Kaye served on the NAM council until she retired to the Isle of Mull in 1983. She died in 2006 at the age of 92.