Double Life of a Doctor — Clare Lavenham

It was bad luck that Ruth's holiday in Crete was being cut short, but once a nurse, always a nurse, and when Dr. Michael Anderson asked her to come and care for a friend of his who had taken ill, she simply couldn't refuse. And soon found that Mrs. Jewson wasn't her only patient, for Michael was acting an unofficial doctor to the whole neighborhood! Perhaps it was inevitable that Ruth's growing respect for him should turn to love, but what about Michael's feelings? Did he really care for her, or was he only looking for a suitable stepmother for Zeta?