The Archimedes Loop - The Adventures of a Time Traveller, #1

"The Archimedes Loop" tells the story of Harold Jones, a quiet programmer from the small town of Maple Creek who lives a solitary life, his only friend being Carl Slagbäck in Sweden, with whom he communicates through their private social platform. Harold's life changes dramatically when he receives a mysterious package containing a time travel device and instructions to meet Archimedes in ancient Syracuse.

Initially skeptical, Harold eventually travels to Syracuse where he meets Archimedes and helps him understand modern physics and electronics. Together, they develop what they call "flux theory," explaining how time travel works through quantum mechanics and neural interfaces. Their collaboration reveals a perfect temporal paradox: the device Harold brought to the past couldn't exist without their collaboration, yet their collaboration couldn't happen without the device.

The story explores themes of causality, knowledge transfer across time, and the responsibility of keeping certain discoveries hidden until humanity is ready for them. Harold's socially withdrawn nature proves perfect for the mission, as his minimal social interactions create less temporal disruption.

Upon returning to his own time, Harold continues his quiet life in Maple Creek, but with a profound new understanding of reality. To his neighbors, he remains the same reclusive programmer, but now he carries the secret of one of history's greatest scientific collaborations. Only his friend Carl knows the truth about Harold's historical adventure and the elegant paradox known as the Archimedes Loop.