In case you are continually checking for Shelby's letter this week, be assured that she is OK. It's just that their Preparation Day has been changed to Wed. this week so they can go to the temple.
They are only 30 miles away!! I think that they not only get to attend the temple but they also get to serve there as missionaries and talk to people and answer their questions. I know, they are looking forward to this opportunity! I'm not sure if they get to do this once a week until the end of the month, or if it is just a one time shot!