The list of $0.99 ebooks hasn't been updated this month yet on the Poisoned Pen Press website, but I noticed a few new ones were discounted to $0.99 at Amazon this week. Some of these were offered for $0.99 in previous months, so check to see if you already have them (I had already bought 2). An
advanced search for Poisoned Pen Press sorted lowest to highest price should bring up more ebooks in a couple of the series which are priced attractively at $2.99.
Wine of Violence: A Medieval Mystery by Priscilla Royal (others in the series available at $2.99)
In the Shadow of the Glacier by Vicki Delany
Heartshot: A Posadas County Mystery by Steven F Havill
Cocaine Blues (Phyrne Fisher) by Kerry Greenwood (others in the series available at $2.99)
Artifacts: A Faye Longchamp Mystery by Mary Anna Evans (others in the series available at $2.99)