Murder on St. Mark's Place is the second in Victoria Thompson's Gaslight Mystery series, and per
SYKM it was a finalist for the 2001 Edgar Award for Best Paperback Original. It's on sale in the US for $1.99.
Kindle US:
https://www.amazon.com/dp/B001QKSW5S
Kobo US:
https://www.kobo.com/us/en/ebook/mur...t-mark-s-place