Describe the tragic story of the author's friend in Lonavala whose son passed away.

Chapter 2 recounts a somber event that happened to a very close friend of the author. This friend, who was the son of a Guru, was in Lonavala with his wife. Their only son, who was healthy and virtuous, was suddenly stricken with a fever. The text states that all possible human remedies were attempted to save him. In addition, divine interventions like threads and rituals were performed. The friend even had his own Guru sit near the boy's side, but despite all these efforts, the son ultimately passed away, "deceiving" them all in their attempts to avert the crisis.