The story involves four children. Nat and Katie are ordinary kids who live in
the Florida Keys. They are ten and twelve, and brother and sister. Kyp and
Edwin live in Pandium, and are both about eleven years old. Edwin is Crown
Prince, and will become King on his upcoming birthday. Kyp is an apprentice to
the Royal Magician, Krisgen, but is really more like a slave than an apprentice.
Kyp overhears Krisgen plotting to kill Edwin, and warns the prince. Together
they hatch a plan to use one of Krisgen's spell books, and Kyp's uncertain
magic, to summon a hero capable of defeating the conspirators. But instead
of a fierce, enchanted warrior, they instead conjure Nat and Katie, two
ordinary and very unwarrior-like children.
Now stuck in Pandium, Nat and Katie have to work with Kyp and Edwin to
defeat the wizard, Only when Edwin is safe can they hope to return home.