Final answer:
The excerpts provided do not address how a doctor finds where Kino had hidden the pearl. The texts feature various characters and scenarios, none of which pertain to the specific question about Kino's pearl.
Step-by-step explanation:
The provided excerpts do not contain information about a doctor finding where Kino had hidden the pearl. Instead, they show different contexts and characters that seem unrelated to the original question. The excerpts include dialogues and narrations from various situations such as potential theft, exploration and hiding, as well as confrontations with assassins.
For example, the character Maria in one of the excerpts seems to be involved in theft, while another character, Gil-Dong, is disguised and interacting with a traveler. Kino's situation with the pearl is not directly addressed in any of these excerpts. It appears the student might be referring to a different text or part of the story that is not included in the provided information. To adequately answer the question regarding how a doctor discovers the location of a hidden pearl, more specific context from the relevant text would be required.