His Last Bow was meant to be the last of the Holmes stories and is given the subtitle “An Epilogue of Sherlock Holmes”. Doyle did pen and publish a subsequent collection of stories The Case Book of Sherlock Holmes but all the stories in that collection “take place” a decade or more before His Last Bow.
The story is unusual in that it is one of only a couple of Holmes stories not written in the first person; most of the Holmes’ stories and all of the novels are written from the point of view of Dr. Watson Holmes’ faithful companion and a few stories are written from Holmes’ own perspective.
This story though was written in the 3rd person perhaps because Doyle wanted to present this story of espionage thwarted in such a way that Holmes’ entrance comes as something of a surprise though the subtitle kind of serves as a spoiler.An Author's Republic audio production.