Sgt. Janus Returns
Jim Beard made quite a splash in the New Pulp community when he introduced an original occult detective character in Sgt. Janus, Spirit-Breaker in 2012. There has been a rich history of Holmesian occult detectives, but Beard appeared to have been the first to hit upon the brilliant concept of having each short story in the volume narrated by a different client of the detective. It was a simple, but highly effective means of giving eight different perspectives on the character.
Beard also took the unexpected decision to kill off his character at the end of the last story in the collection. Imagine if A Study in Scarlet had concluded with Holmes plunging to his death at the Reichenbach Falls and you have a clear notion of what a bold and unexpected move it was to make for an author who had already managed to raise the bar in a genre that many believed had been exhausted of fresh ideas.