A couple of vintage bargains @ $1.99 from Open Road Media in Canada & the US (couponable/VIP discount-eligible @ Kobo, should be the same price in all the other stores):
Trouble in July by the late Erskine Caldwell (
Wikipedia,
Georgia Encyclopedia), apparently a notable early 20th century American literary figure, his vintage 1940 literary drama novel exploring racism in the US South.
A community lynches a wrongly accused man in Caldwell’s scathing indictment of Southern prejudice
When word spreads through Julie County that Sonny Clark, a black man, has assaulted Katy Barlow, a white woman, the man’s fate is sealed. With frightening speed, authorities and an outraged mob align to apprehend Clark and condemn him without trial. By the time Barlow confesses that no crime occurred, it is too late.
Told from the multiple perspectives of victim and victimizers as well as passive onlookers, Trouble in July depicts in harrowing detail the tragic ignorance of individuals who fail to understand their roles in a hateful miscarriage of justice.
The Small Rain by the late Madeleine L'Engle (
ISFDB,
Wikipedia), best known for her beloved YASF classic
A Wrinkle in Time, is her very first novel from 1945 (
Wikipedia), a semi-autobiographical coming-of-age literary novel starring her character Katherine Forrester who later appears in a few other novels where she meets some of the characters from L'Engle's Austin family and other works.
In the US @ Amazon only, her standalone 1946 novel
Ilsa which was her 2nd novel (
Wikipedia) and apparently mainly notable for having been out of print a long time, is also on sale for $1.99 and may or may not drop elsewhere, since ORM has an irritating habit of sometimes only having Amazon-exclusive US-exclusive sales.
Kobo US linkage if you want to price-match.
ETA: Another L'Engle @ $1.99 in the US only, but available at Kobo:
The Other Side of the Sun, a psychological family drama which stars the ancestors of one of the characters in
Dragons in the Waters which is one of the adventures of the next-generation Murry & O'Keefe family members from AWIT.
IIRC, neither this particular Caldwell nor either of the L'Engles was part of ORM's giant giveaway, though YMMV upon checking your archives. All of these are enhanced with illustrated author biographies featuring rare photographs, etc., if you're interested in that kind of thing.