The Grassland World was Iyerre's most important trump card, the one he intended to rely on to utterly defeat the cultivators and conquer this Chaosverse. It was the main reason why he was so confident in his ultimate victory. If the Grassland World was destroyed, his chances of victory would become virtually nil. He'd all but simply have to wait for defeat.
Thus, as soon as Iyerre heard this bad news his mind became filled with many thoughts. For example, how did the cultivators manage to prepare a trap in advance? How was it that the protections of the Grassland World had been breached so easily?
The latter, he had an answer for; he suspected that the silver-robed woman and the other two weren't ready to defend it with all their strength. But the former? For now, he truly couldn't understand how the cultivators had managed to set up a trap in advance.
