There were less than two hours left before the Thailand Civil Aviation Authority's approved departure time for the Hong Kong Island Police Force's official charter flight.
The officer operating the drones to reconnoiter the area around the safe house suddenly looked alarmed.
"Sir He, we have an emergency!"
"A special radio signal has been detected. Drone Three has confirmed an unidentified aircraft approaching."
As the officer reported the emergency over the communications channel in a grave voice, he raised his hand without hesitation and pressed the Emergency Alarm Button beside him.
In an instant, red warning lights signaling danger began flashing in every room and along the walls throughout the safe house's underground bunker.
"Special Police Force, prepare for combat! Open fire immediately on any suspicious targets!"
His gaze sharpened. Without hesitation, He Wenzhan bypassed Withaya and issued combat orders directly to everyone, including the Thai special police.
"If the situation becomes critical, don't hesitate. Fall back into the bunker inside the safe house immediately!"
"A Team, hold the bunker entrance and prepare to receive them!"
Even as he finished speaking, He Wenzhan grabbed the HK G36 short assault rifle in front of him, slung it across his chest, and ran straight toward the temporary monitoring room in the bunker.
There were not that many civilian aircraft enthusiasts in Thailand.
Besides, this was the location of a secret safe house belonging to the Thailand Police Headquarters.
For the moment, He Wenzhan was still unsure whether the suspicious unidentified aircraft outside belonged to the DOA Group.
If it really was theirs, he did not know through what channel they had located this safe house.
But He Wenzhan knew perfectly well that the mysterious force outside the safe house had not come with good intentions.
Already a hard-line hawk within the Hong