The Felse Investigations Volume Two, by Ellis Peters contains the fourth – sixth books in Peters’ George, Bunty, and Dominic Felse series. Peters is better known IMO for her Brother Cadfael series, but the Felse series is enjoyable too. The compilation includes: A Nice Derangement of Epitaphs (apa Who Lies Here?), The Piper on the Mountain, and Black Is the Colour of My True Love’s Heart. It’s priced at $3.99 right now at Kindle US, which is a pretty nice price if you need all three, and not too bad even if you just need two…
Buy at Kindle US
Fallen into the Pit is the first Felse title. It’s $1.99 right now at Kindle US: https://www.amazon.com/dp/B017X19UG8