Redacted Sherlock Holmes Volume VIII

Orlando Pearson, master narrator of history and Holmestry, has done it again.
In this eighth volume of the acclaimed Redacted Sherlock Holmes we learn:
what Moriarty had done to be regarded as the Napoleon of crime
why Watson's wound was first described as being in the shoulder and then in the leg;
what happened in the first Hiatus between Holmes and Watson meeting after the Battle of Maiwand in 1880 and the first dated case in 1887;
the fate of Agatha, Holmes's fiancée from Charles Augustus Milverton
Holmes also discovers a King of England while Mycroft suppresses the acts of a monster.