When the Twins' business is hurt by a subsidy, they visit Ludwig Von Mises and crash-land in a Spooky land where they learn just how stinky the market can get.

After Emily fails a test, the twins wonder whether school is the best way to learn--prompting Grandma to whisk them off to a familiar place in the past, before stopping by the most famous mind in history, and then a rumble in the jungle...