Apologies in advance to the Empty Sea crew if this is showing too much of your backdoor, as it were....
Try this raptor. I stumbled on the directory structure. From there you can grab the mp3s. "Episodes" 1-5 up at the top are for Shadow of the Unknown. http://emptysea.net/tote/
Um, whatever you do, don't pick on the file at the very bottom. It's just... F*kin' Goofy.
And this one http://emptysea.net/tote/French/
is for the French Affair.