Punchcards from Atlantis

A mission to Bermuda goes terribly wrong and Sgt. McGraw finds himself with only one person left in his team: the stuffy anthropologist unsuited for field work.
Can they complete their mission before the greenskins get to them?

Based upon the tongue-in-cheek 1950's themed board game (Mars vs Earth), this *short story* follows "Duke" McGraw & Dr. Bonnie Hill at the tail-end of their doomed Bermuda mission to disrupt Martian communications.