The Flash: Stop Motion by Mark Schultz; audio book by Graphic Audio, is pretty good. This story is part of a series of books about the Pre New 52 DCU Justice League. As far as I know all of the books are stand alone stories, and I don't think you need to read them in any particular order to understand any of them.
This one features the Wally West flash who was Berry Allen's nephew by marriage to Isis West. The story revolves around a genetically engineered creature called The Super Luminoid [No idea about the spelling of that since I had an audiobook.]. It's a decent story but a lot of it is taken up with lengthy descriptions of some very dubious science.
Enjoyable if you liked the Wally West flash, the Pre New 52 Earth, or are listening to the other books in the series.