Xiao Xiao's analysis sent a shiver down Zheng Qing's spine.
Indeed.
Although the chances are small, the unexpected collapse of the Magic Barrier is not impossible. If the barrier collapses and seawater floods into the market, in the chaos, it's uncertain how many people could perform the water avoidance art or cast the Bubble Head Charm.
If the barrier collapse is not an accident but intentional, then the situation would become even worse.
This means that the guests in the market must defend against the seawater invasion while also being wary of potential unknown attacks. In such a case, using the water avoidance art would be a very bad option.
You must understand, performing the water avoidance art requires occupying one hand continuously.
