Has to be a mis-price, but if you're interested, it's worth a try to see if they will honour it. It's also at asda at this price, as I think they are part of the same network, but the cheapest elsewhere is Virgin for £32... You could even use the 5% discount code (amicus05) to get it for £5.60 !!!
Details: The discovery that they are descendants of a long line of witches find three sisters battling demons and warlocks - and occasionally each other.