What was the specific illness mentioned in the story from Chapter 34, and what does the failure of doctors to cure it signify in the narrative?

The illness afflicting the doctor's nephew is identified in Chapter 34 as a 'bone-cyst,' referred to by the names Hadyavran and Hadyavarn. It is characterized as a 'most difficult and extraordinary malady.' The narrative deliberately emphasizes the complete failure of medical science to treat it. A degree-holding doctor, his physician friends, and even expert surgeons were all exhausted and helpless. They had tried all native and foreign treatments and surgery to no avail. This failure is significant because it serves to elevate the spiritual and miraculous power of Sai Baba and his Udi. By showing the limits of human knowledge and skill, the story highlights that faith and divine grace can succeed where science has failed.