Ben goes undercover in the White House to take on a SPYDER operative determined to assassinate the president in this latest addition to the New York Times bestselling Spy School series.

Thirteen-year-old Ben Ripley has had a lot of field success despite only just beginning his second year at Spy School, something graduates rarely experience. But he'd never have survived without the help from experienced agents and his friends.

Now he's been called in on a solo mission--and the fate of the United States of America is on his shoulders alone.

The Mission: Prevent a...

The local police prove unhelpful when a 500-pound dinosaur skull vanishes from a secret excavation on Sage's family's ranch, so Teddy and his friends conduct their own investigation.