This is not a strict single-point-of-departure fic - there exists a primary point of departure, at some point in the past, but also other alterations. The best term I've heard for this fic is "parallel universe".
The text contains many clues: obvious clues, not-so-obvious clues, truly obscure hints which I was shocked to see some readers successfully decode, and massive evidence left out in plain sight. This is a rationalist story; its mysteries are solvable, and meant to be solved.
The pacing of the story is that of serial fiction, i.e., that of a TV show running for a predetermined number of seasons, whose episodes are individually plotted but with an overall arc building to a final conclusion.
The story has been corrected to British English up to Ch. 17, and further Britpicking is currently in progress (see the /HPMOR subreddit).
All science mentioned is real science. But please keep in mind that, beyond the realm of science, the views of the characters may not be those of the author. Not everything the protagonist does is a lesson in wisdom, and advice offered by darker characters may be untrustworthy or dangerously double-edged.
I suggest including them in the PDF, just excluding the probably outdated part about the British English correction.
Beneath the moonlight glints a tiny fragment of silver, a fraction of a line...
(black robes, falling)
...blood spills out in litres, and someone screams a word.
Chapter 2 opens with the quote
"Of course it was my fault. There's no one else here who could be responsible for anything."
Most chapters up to Chapter 18 also have some opening quote.
I would like to add them to the PDF as well.
Author's funny comments
Comments like
#include "stddisclaimer.h"
are found above the quotations. I suggest not to include those.
Author's introduction
The official version at https://www.hpmor.com/chapter/1 starts with these author's notes:
I suggest including them in the PDF, just excluding the probably outdated part about the British English correction.
Opening quotations
Chapter 1 opens with this nice quote
Chapter 2 opens with the quote
"Of course it was my fault. There's no one else here who could be responsible for anything."
Most chapters up to Chapter 18 also have some opening quote.
I would like to add them to the PDF as well.
Author's funny comments
Comments like
are found above the quotations. I suggest not to include those.