Scrambled Brains

5th of 5 chapter book meant for 7-10 year olds.
"What's going on? Dozens of teenagers have started behaving strangely, and Sam, Clover, and Alex are whisked off to an amusement park in Texas to figure out why. There they find a crazy scientist who is brainwashing teens in an attempt to control the world. It's up to the spies to stop the evildoer -- and avoid getting their brains scrambled in the process!"