Here is another. Sheep & bus.
"Fatal Enquiry" by Will Thomas. It is the 6th installment of the Victorian era detective novels subtitled "Barker and Llewelyn mystery". I waited 5 years between number 5 and number 6, sadly, but it has been worth it so far. Number 7 is already out in hardcover so I won't have to wait too long until it's available in softbound. The books are atmospheric, historical, well-written, clean, and interesting. A great combination if you can find it!