Solving the Riddle: Stranded in Time 1

TRAPPED IN TIME
STRANDED IN THE FUTURE

In the year 6421 AD, reasons for humanity’s extinction remain unknown to the government and future historians alike. In an era where time travel is possible, historians and journeymen have been forbidden from exploring that time period for any purpose whatsoever.

Nobody knows what will cause human extinction, and nobody has a clue.

But with only a thousand years left to humanity’s existence, an frenetic kind of curiosity spurred the constabulary's highest ...