Hi MN readers! Am hoping you can help me with a question which has been bugging me for a while now.
A few years ago (about 5 I think) I bought a newly released paperback to take on holiday. From what I can remember it was a detective novel set in Victorian London, I think by a first-time author. I think the author was female though I’m not 100% on that.
From memory, it involved a younger son from a rich family who had been a bit of a wastrel up until that point, somehow getting embroiled in some kind of mystery (can’t remember what) which centred around a workhouse or poorhouse and he has to go undercover and live there to figure the mystery out. There’s a murder at one point and I think a child figured in the plot. It was quite clear from the ending that the author was setting our wayward hero up for a series of detective novels.
It was very well written and good quality, if you see what I mean, not a kind of cheap schlock thriller or anything.
Unfortunately although I loved the book and totally devoured it, I left it behind at the holiday cottage and despite searching online I’ve not been able to figure out what it was 
I was wondering because I would absolutely love to read any further books in the series, if there are any.
Does ANYONE have any idea what this book might have been ?!