For a moment there, the king felt curious about this fog and wanted to leave a single valley untouched to see what was going to happen. But when Sloth stressed against this, he finally dropped such a thought.
"It's risky to try things out in wars, let's kill all the monsters and burn the fog then…" he relayed his orders, and Sloth heaved a sigh of relief.
He also was curious about this fog, but the way William said his last words made him drop such an idea as well. He and others worked their best to orchestrate this counterattack, while other masters started to help the selected ones, killing monsters that dared to come closer to them.
Soon enough, they started to feel something weird. The monsters that were easily killed before started to put up a good fight against the masters. This started at a few locations first, before it spread out like plaque.