A mysterious package has been air-mailed to the
Inventor’s Club. Its contents are encrusted with a decade
old mystery. The return address was written in a strange
code, which causes concern for Grandpa Edgar. Because
only one other person knows what it means or how to
read it. A friend he helped buried many years ago.
Grandpa Edgar is forced to place his personal hunt
on hold and journey with Audrey and Garrett to a volcanic
island halfway around the world to search for answers. But
what they discover is a maze of traps and misdirection put
in place by a pirate captain and his island princess to
protect a treasure of Egyptian gold.