When does he realize that he was lost his way? How has his anxiety and insecurity been described?

When the child saw a roundabout he got very excited and made a bold request to his parents that he wanted to go to the roundabout. He knew that his request would not be entertained, however, when he did not get any reply he turned back and found that his parents were nowhere to be seen. It was then that he realised that he had lost his way. The author has described the boy’s insecurity by stating that a deep cry went through his throat and his eyes and face were convulsed with fear.