Write an opening paragraph for a 1950’s style science fiction story set on Venus.
Valentina re-holstered her death ray gun when she saw McGruff venture back through the spaceport door. Relieved, she asked him what he'd seen beyond the planet's barren surfaces. "I found a cave," McGruff stammered, "Not a natural one, either. Someone's been here and used some heavy machinery. We need to find out who." Valentina sighed. She'd wanted to finish their Venusian mission and hop on the next space-flight home. McGruff suggested they take their lumi-sticks and head into the cave to try to get to the bottom of the mystery. "If you want to tell Commander Proteus why we're late, be my guest, but we could ignore this whole thing and just head on back home right now," Valentina countered, "Who will know if we don't say anything?" McGruff was a by-the-book lieutenant and she knew it. There was no way he was going to ignore something of this magnitude. "Get your lumi-sticks and come on," McGruff ordered a now resigned Valentina. 