The needle-tip-sized nozzle precisely aimed at the region with the densest powder, adjusted to a more conservative position than the value recommended in literature, then Duke activated the vacuum rune on the collector with the slightest force.
A barely audible inhalation sound followed, as several grains of gray-white powder were sucked into the nozzle, traveling through the spiral path of the vacuum chamber into the storage compartment.
The entire process was as silent as a butterfly landing on a petal, without causing any energy disturbance.
Duke didn't rush to continue. He paused for a few seconds, using Spiritual Power to inspect the state of the first grain of powder in the storage chamber—gray-white, intact granules, stable activity, with no signs of contamination.
Only then did he slowly exhale half a breath, moving beside the next plant, repeating the same operation.
