Who Wants to Be a Billionaire (The Floods Series #9)

The Floods take on Wall Street and solve the global financial crisis in the ninth book of their hilarious adventures
 
The world is in a recession and millions of people have lost millions of dollars. And just when things are about to get even worse, the Floods set up Summer School in New York and take control. Everyone is thrilled that help is at hand but as they say, charity begins at home. So millions of people will probably lose millions more dollars, but it will all work out fine in the end. Well, for the Floods anyway. Hey, come on. They're witches and wizards, not some sort of charity.