33/ Intruder alert

Their tiny rotors and sharp edges pierced the nightsky, their pink lights eyeing their surroundings for any signs of unauthorized trespassing.

When the pebbles clicked and rolled, they began to scan the area with their heat sensors.

Worker 73842, approved,

worker 38291, approved,

archaeologist 2811, approved,

supply drone 2919301, approved,

unknown human female detected, alert, alert, intrusion detected, alert, alert.