There is a big sale on books by James Lee Burke in the US right now, with many, many titles going for $1.99 each. This is across several series: Dave Robicheaux, several Holland series, some non-series. This is a great chance to plug some holes in what you have, if you’re a big James Lee Burke fan. Or even just a medium fan 😊.
There are way too many titles to list, so here are links to his author page at several e-tailers, and you’ll just have to look from there: Kindle US | Kobo US | BN Nook US
And my thanks to @BetterRead, whose post at the MobileRead forums alerted me to the sale!