Wishbones is the 8th in the Sarah Booth Delaney series by Carolyn Haines. It has dropped to $2.99 at Kindle and Kobo US. Books in this series don't go on sale very often, so grab it if you want it...
Kindle US:
https://www.amazon.com/Wishbones-Sar...dp/B00139XTBE/
Kobo US:
https://www.kobo.com/us/en/ebook/wishbones