Two lost fics, both McShep

I've been asked about these two fics over on tumblr and can't remember them. Nobody has spoken up over there, so maybe someone here will recognize them.

1. A fic where Rodney and Sheppard get stranded and they met essentially a future Rodney and Shep had been turned into a creature? It was Halloween themed?

2. John is missing and Rodney is in charge of the city because Weir is dead. Atlantis is in space or they’ve moved planets and Rodney field promotes Lorne. They do eventually find John and bring him back.