Jon VanZile

Billionaire Jon VanZile

Build the machine!

Save the family!

When 12-year-old billionaire Zig Zephyr discovers these words in his dead grandfather's journal, he has no idea what they mean. But he quickly learns that Alton Zephyr--famous inventor, jewel thief, escaped prisoner--had many secrets...beginning with the lab hidden under his family's garden.

And his plans for a time machine.

With the help of an eccentric scientist and his two children, Zig and his friends soon embark on a chase through history, solving a series of riddles Alton left hidden in time. Along the way, they experience some of the most important moments in American history--and learn that old family mysteries sometimes come back to life and danger is just seconds away.