"A historian's discovery of a time-travel artifact in ancient Egypt leads to a thrilling journey through different eras, but meddling with the past has disastrous consequences, forcing them to race against time to set history right."
Protagonist: A historian specializing in Ancient Egypt who is fascinated by the idea of time-travel;
The protagonist discovers a mysterious artifact in an ancient Egyptian tomb that holds the key to unlocking the secrets of time-travel, leading to a thrilling and dangerous journey through different eras.
The protagonist successfully travels back in time to ancient Egypt, where they witness the construction of the pyramids and interact with historical figures. However, they realize that meddling with the past could have disastrous consequences for the future. Ultimately, they decide to destroy the artifact and return to the present, with a newfound appreciation for the importance of preserving history.
Twist: The protagonist's actions in the past inadvertently alter the course of history, leading to a present where ancient Egypt never existed. They must race against time to set things right before it's too late.