Dr. Lanyon's death was caused by shock after witnessing Mr. Hyde transform into Dr. Jekyll in front of him. The realization that Jekyll and Hyde were the same person was too much for Lanyon to handle, leading to his fatal decline.
Dr Lanyon discovered that Mr Hyde was a metamorphosis of Dr Jekyll. Lanyon saw Mr Hyde drink a potion and metamorphose into Dr Jekyll.
Mr. Hyde came to Dr. Lanyon's house at midnight asking for a specific drug that he needed. Dr. Lanyon was shocked by his sudden appearance and behavior.
Mr. Utterson is a very good man and he is the school and a college mate of Dr> Lanyon. Actually even Dr. Jekyll was the old freind of Dr. Lanyon and Mr. Utterson.
Dr. Lanyon was surprised when Mr. Hyde came to his house at midnight.
Dr. Jekyll first told Mr. Utterson the truth about Mr. Hyde. Utterson was Jekyll's lawyer and friend, and Jekyll confided in him about the dual nature of his relationship with Hyde.
The tone of the author toward Dr. Lanyon is one of admiration and respect. Dr. Lanyon is portrayed as a rational and accomplished physician whose friendship and scientific expertise are valued by the narrator.
Mr. Utterson receives a letter from Dr. Lanyon before his death, containing instructions not to be opened until after Lanyon's death or disappearance. In the letter, Lanyon reveals the truth about Mr. Hyde's identity, shocking Utterson.
dr.jekyll
science
Dr. Jekyll asks Dr. Lanyon to retrieve a drawer containing some chemicals and a book from his laboratory.
In Chapter 6 of "The Strange Case of Dr. Jekyll and Mr. Hyde," Dr. Lanyon receives a letter from Dr. Jekyll instructing him to go to Jekyll's house, retrieve a specific drawer, and bring it back to his own house. Dr. Lanyon is horrified by what he finds in the drawer and the shocking revelation about Dr. Jekyll's true nature that it reveals. This discovery ultimately leads to Dr. Lanyon's decline in health and his death.