The wanderer finds a city in the toxic desert

At first, Jade feared that the balloons bobbing over the sandstorm were nothing more than a mirage, a trick of the light and wishful thinking. But when the buildings came into view, she nearly fell to her knees with relief. If this city afford the luxury of helium, surely they had oxygen on hand as well. Illustration by Yishu Wu.

Travel [Yishu Wu via The Art of Animation]