Ibro didn't reply to the system suggestion. He was very paranoid about that mysterious voice. He didn't trust those he couldn't meet in flesh. Ibro then said:
'Start investigating then. I will start summoning my death kings all the way. We need huge armies to send to other worlds.'
'…'
Ibro then began to use his spells and curse non-stop. Every group of Death kings he summoned, he gave them the order to patrol the region.
These death kings were very helpful as they could summon nearly 10 million skeletons every five minutes. They became stronger and faster than before.
Ibro took nearly 4 hours roaming aimlessly while summoning his death kings. All this time, he didn't stop monitoring the movements of the demons at all.
'I have found something suspicious in the outer region of your divine senses.'
Ibro's interest was piqued at once, as he asked:
'What is it? Where is it?'