A little awkward, but I was going to download #81 (Shifting Sands, Mummy's Mask) from my downloads page, but it's not listed. I have the subscription and the rest are there. I even have the book at home, delivered from Paizo.
Hi Stellari,
It looks like the system got confused when the original shipment got marked as returned. I have given things a poke and the PDF should now be available.
Thanks!
~Sharaya