At the same time, William asked them to try sending more masters, ones without wind element, weaker grade ones, and such things. He wanted to test all the variables about this way out, so others would be ready to face any unexpected situation.
The distance they tested made it clear that the toxic layer expanded over five kilometres only. This was a bit bigger than what William thought before, but it was still doable using the new catapult.
During the next day, everyone was working with hope blazing in their chests. As long as there was hope, then masters were able to do anything to see it through.
William kept hearing more reports about the success of making catapults at different sides. And since then, things started to head for the better.
They all tested it, and all sides were able to get over the toxin region safely. The only issue now was in the limited capacity of these catapults.