The wackiest road trip in history has reached its final destination. . . .

But Coke and Pepsi McDonald aren't in the clear just yet! Before they reach the finish line, the twins will be

Abducted by aliens,
Trapped with a venomous snake,
Pushed through a deadly turbine, and
Thrown into a volcano.
Craziest of all, their parents might finally believe them!

Will the twins make it back home to California in one piece, or will they fall off the top of the Golden Gate Bridge? It's all coming to an end with this fifth book in the Genius Files series. You'll have to read it to believe it!

Dan Gutman is the New York Times bestselling author of the Genius Files series; the Baseball Card Adventure series, which has sold more than 1.5 million copies around the world; and the My Weird School series, which has sold more than 30 million copies. Thanks to his many fans who voted in their classrooms, Dan has received nineteen state book awards and ninety-two state book award nominations. He lives in New York City with his wife. You can visit him online at dangutman.com.