Every three months, the Angoro Grand Canyon would become a land of lightning. Bolts would fall from the sky and gather in the canyon, making the entire area an electrical forbidden zone.
However, the lightning wouldn't exist forever; it would gradually dissipate after four or five days.
What Wang Teng wanted to do was seize that window of opportunity.
Two months and twenty seven days had passed since the previous lightning storm. This meant that he only had three to four days to set up the array.
It was precisely because of the timing that Peggy made the suggestion.
However, three days was a bit… short!
Setting up a grandmaster-level rune array in three days was too hasty.
Still, there was no other way. They could only try their best to complete it.
Suppressing the dark apparitions with the help of rune arrays was definitely a huge advantage. They couldn't just give up like that.