"... The gravitational field is changing! Calculating the change now!"
It was dinner time, and Lu Yuanming had just enjoyed a rare meal with his family and friends. Upon receiving the message, he and Lu Yuanmin exchanged glances, each making an excuse to swiftly leave the table, then they hurried towards the government building.
"We should be arriving soon."
On the hover car, Lu Yuanming spoke solemnly.
Since the implementation of the handshake project, two years and three months had passed. From this point on, the Alliance civilizations could return at any moment, and humanity had already distributed over fifteen pairs of quantum entangled particles, monitoring a vast region approximately half a light-year around the star system.
To avoid alarming the enemy, these quantum entangled particles had not been programmed with complex functions; their sole purpose was to detect changes in the surrounding gravitational fields, the only way to track faster-than-light travel.
