Frank Einstein and the Bio-Action Gizmo (Frank Einstein Series #5) Other Books in This Series

Frank Einstein and the Space-Time Zipper (Frank Einstein series #6)

Frank Einstein and the Space-Time Zipper (Frank Einstein series #6)

Frank Einstein and the Space-Time Zipper (Frank Einstein series #6)

The Frank Einstein 6-Book Collection

The Frank Einstein 6-Book Collection

The Frank Einstein 6-Book Collection

Frank Einstein and the Antimatter Motor (Frank Einstein series #1)

Frank Einstein and the Antimatter Motor (Frank Einstein series #1)

Frank Einstein and the Antimatter Motor (Frank Einstein series #1)

Frank Einstein and the Electro-Finger (Frank Einstein series #2)

Frank Einstein and the Electro-Finger (Frank Einstein series #2)

Frank Einstein and the Electro-Finger (Frank Einstein series #2)

Frank Einstein and the BrainTurbo (Frank Einstein series #3)

Frank Einstein and the BrainTurbo (Frank Einstein series #3)

Frank Einstein and the BrainTurbo (Frank Einstein series #3)

Frank Einstein and the EvoBlaster Belt (Frank Einstein series #4)

Frank Einstein and the EvoBlaster Belt (Frank Einstein series #4)

Frank Einstein and the EvoBlaster Belt (Frank Einstein series #4)