Qu Jianlei and his team would never have thought that just as they left, an unknown entity arrived.
They had indeed dissipated the spiritual energy, but as a relatively stable base, the Spirit Gathering Array had been operating for too long.
Some spiritual energy had already seeped deep into the soil and rocks.
Even though this world could hardly contain spiritual energy, the years of seepage could not be eliminated naturally in a short time.
Qu Jianlei and his team had been very cautious and had specially treated objects that were heavily infiltrated.
Moreover, since he was in charge of bringing up the rear, he checked everything once again before finally leaving.
However, there were still some overlooked spots, though it wasn't due to their carelessness, as not even their specialized instruments could detect it.
Their mistake was only that they were too familiar with spiritual energy, and had basically lost perception of the extremely subtle traces.
