Final answer:
The student's question mentions Danglars and Morcef, characters from 'The Count of Monte Cristo,' but the excerpts provided are from other literary works and do not contain information about Danglars informing the Count about Morcef.
Step-by-step explanation:
The excerpts provided are from classic literature, and it appears that there might be some confusion in the question asked by the student. The text makes no mention of Danglars telling the Count about Morcef, which is a reference from Alexandre Dumas's novel The Count of Monte Cristo.
Instead, the excerpts included seem to be from works of Edgar Allan Poe and other literary texts, including The Cask of Amontillado by Edgar Allan Poe, where a character named Fortunato is led into the catacombs, and The Murders in the Rue Morgue, featuring C. Auguste Dupin, a character known for his analytical skills and often cited as one of the earliest fictional detectives. It is important to make sure that the text in question aligns with the query.