The answer is
The Hound of the Baskervilles
Warlord 099's answer took me almost the whole way there. It suggests to:
fill in partial words like
B***KF***into words likeBREAKFAST, then find them in the grid with a set of substitutions. For example, it becomesBDSOKFOEC, a string found backwards in the top row of the words search, with the substitutionsD<->R, S<->E, O<->A. C<->T. Presumably, Warlord 099 found these by looking for snippets in the word search and finding consistent substitutions.
From there, I simply
Googled the words.
This led me to
The first paragraph of The Hounds of Baskerville, a story featuring Sherlock Holmes, which contains these words.
As confirmation as to the answer
the first chapter contains references to meeting at Waterloo Station.
I feel like I disregarded some information in my solution, so I'm curious if this is how it was intended to be solved.
