I usually don't like to read zombie books, but this is not your typical, "I want to eat your brains" zombie story. This was an excellent, satire. It's an amusing, thought provoking, short story, with a serious life lesson. It covers a possible but yet, not unthinkable effects of global warming, and a disastrous complete end to our economy and society. I highy recommend reading this story this author wrote.
America has been outsourcing jobs, overseas for cheap labor for years, making the unemployment level right now still very high. But, this short story explores what would happen if we had even better laborers, ones who can withstand working forever, 24/7, for free!
As for the black mold scenario, ( Stachybotrys Chartarum ) it's the most toxic, hard to kill, strain of molds out there now. With long term exposure it can have serious effects on the respiratory system. I know.
So in underlying way, this author wrote an excellent, metaphor for the way the world is becoming today.
Now take those two possible scenarios, mix them together, and you never know? What a scary thought..........