Straight to the point:
There are four "Kindle Exclusives" ebooks in Ian Flemings' "James Bond" series, which have super Whispersync Deals associated with them right now. Each one of the ebooks is $0.99; each one of the audio narrations is $2.99. Ka-ching! WS deals for
$3.98 each.
Sorry, but I don't have the GIRl's (Stupid autocorrect: it's U R L ' s!) at this moment.
I suppose that Amazon has bought the reprint rights to these Bond ("_James_"

Bond) ebooks, at least, and made some kind of arrangement to use or buy corresponding audio narrations.