What finally pushed the family of the sick boy to go see Sai Baba in Shirdi?

According to the account in Chapter 34, the family of the sick boy turned to Sai Baba out of complete desperation after exhausting all other options. The boy's ailment, a bone-cyst, was incredibly painful and resistant to treatment. His uncle was a doctor who, along with his physician friends and expert surgeons, had tried every available remedy, from native and foreign medicines to surgery, all without success. When these medical remedies reached their limit and even appeals to deities brought no relief, they heard about a famous saint in Shirdi. Believing it was their 'last resort,' they decided to go and bow at Sai Baba's feet, clinging to the hope that his divine intervention and his renowned Udi could avert the calamity and save their son.