And one more Poisoned Pen Press author on sale after a long time…
I very much enjoyed Joanne Dobson’s Karen Pelletier books back when I was reading them mostly during graduate school – the academic background seemed quite appropriate. Now the fifth book in the series, The Maltese Manuscript, is on sale for $1.99 in the US, and discountable at Kobo US.
Death Without Tenure is the sixth in the Karen Pelletier series. It’s $1.99 right now in the US.
Kindle US: https://www.amazon.com/dp/B07VPKQD1S
Kobo US: https://www.kobo.com/us/en/ebook/death-without-tenure-6
And, FWIW, the fifth in the series, The Maltese Manuscript, is at $1.99 again as well – the links in the OP are still good.
Sadly, since I liked this academic mystery series when I read them in DTB, the first four don’t seem to be available as e-books, but fingers crossed that perhaps they will become available in the future.