What is an allussion for Sherlock Holmes book?

Question

I am reading Sherlock Holmes: The Hound of the Baskervilles, and I was asked to find one allussion, I know what they are, but I cannot find one in the book, does anyone know one, page number would be helpful, if someon can give me a page number with one on it, and what it is, they will get my best answer. Thank you

I am sorry I misspelled allusion, what is an allusion in the book, and what is the approximate page it is on, I am sorry to the previous asker but no I do not mean illussion.

Answer 1

illusion? is that what u meant?

if u mean Illusion, as in "1. something that deceives by producing a false or misleading impression of reality.
2. the state or condition of being deceived; misapprehension. " (www.dictionary.com)....

the HOUND!!!! he was thought to be a ghost, but he was actually a real dog!!