Thief Gold, an extra key from the Humble Square Enix Bundle

This is a fresh key that was listed as unredeemed until I revealed it for this giveaway. So far, I've had one fresh Humble Bundle gift link fail to work for a giveaway winner (out of ~50, along with hundreds of personally-used HB keys), and tech support won't help because I'm not giving it away to a personal friend. Please only enter if you'll agree to delete this giveaway if this happens to be a second bad key.