Ooh! Get it!
The downtrodden MC just keeps uncovering more and darker secrets about his school friends while trying to discover who killed one of them long ago.
Oooh hey, the Death in the Spires ebook is at 99p on Amazon UK just for today! Edwardian Oxford-set murder mystery, running at 4.46* on Goodreads, snap it up!
www.amazon.co.uk/dp/B0CX9NJRC2
(No idea if it will go to other sites or countries, I don't set these things, sorry.)