"We'll fill the trench with it," William's face turned cold, "the earth-based masters will dig the trench, water-based masters will fill it with water, then wind-based masters will move the barrels over and drop them in the water."
"Just like this?" Zin felt like this was as simple as William made it look like.
"We'll need a special master," William looked at Zin before adding, "one that can turn fluid to smoke."
"Hmm… I can't say we have someone like this, but…"
"You can ask around," William shrugged, "if you didn't find any, then masters with ice elements and techniques can do fine."
William wanted to poison water, before turning this water into smoke, to easily let the substance infiltrate the hounds' bodies. Yet if that failed, then turning it into ice was the next best option.