Embark on a thrilling journey through time and mathematics in "Measuring the Unknown." As an intrepid historian, you find yourself entangled in a web of conspiracies uncovering the true origins of the meter and cubit. In a race against time, you'll travel from the bustling streets of Paris in the 1790s to the dusty tombs of ancient Egypt, solving puzzles based on the Golden Ratio and the enigmatic dimensions of the Great Pyramid. Unravel hidden truths, conduct experiments with light and time, and confront shadowy factions who will stop at nothing to control the world's standards of measurement. Will you unveil the secrets hidden in these ancient units before they disappear altogether?