However, since Sierra had taken the detoxifying pill, the toxic fog did not affect her, so she hadn't paid too much attention to it on the way. Jacob closed his eyes slightly, then suddenly sucked in the toxic fog into his body. His eyebrows furrowed soon after. "Mr. Sullen, what's wrong? Is there something different about this toxic fog?" Sierra asked anxiously.
"The original toxic fog was naturally formed, but this toxic fog is artificially created," Jacob replied. "It seems that we've walked into someone's arcane array. That's why we've been unable to find a way out."
It was at this moment that Jacob realized they had stumbled into an arcane array. He was careless and hadn't noticed it at first because he didn't expect someone to set up such an arcane array.