Frank Einstein and the Space-Time Zipper

The sixth and final book in the New York Times bestselling Frank Einstein series follows the adventures of Frank Einstein, a young genius and inventor, as he teams up with his friends Watson, Klink, and Klank to explore the science and mysteries of the universe. Along the way, they face off against their classmate and archrival, T. Edison, in a race filled with exploration and discovery. This installment continues the series' engaging blend of science, friendship, and fun.