The Right Hand Rule [Paperback]

Amy, Amanda, Marshall, and Ziggy expect their middle school to be empty on Saturday morning so they can get ready for the regional science fair. They don't expect a botched experiment to attract a horde of time-displaced ancient Mayans when their unusual science advisor, Frederick Froth, goes missing. Now the four must use their must use their unique science skills and work together as they grapple with a Mayan War god, the Dark Rift and the principles of science to rescue Mr. Froth.