Unbeknown to the camouflage wearing brute at her side, Trace counted each second silently to herself. The elevator opened as she finished her computation, …weight downward …normal force upward …maximum speed reached just before the elevator slowed down… the guard nudged her forward. …acceleration …therefore…

“Welcome to the most secured place on earth,” said the guard. “You are currently a total of -”

“Thirty stories underground.”

“Yes, but… How?”

“How did I know? Trace continued quickly, “Well… I did have trouble relating the final velocity with the relative upward force. But I think that the result of having had to guess your exact weight. Ninety-five kilograms is it?”

“Ninety, actually,” scoffed the guard.

“Don’t fool yourself,” stated Trace, drily. “Now, where is Professor Flotilla?”

“We have a team looking into that – even as we speak,” said a voice as she entered the command room. His back to the door, a bald man in a lab coat looked up at the monitors, “That is why we brought you here.”