It all comes together in the last episode of the Pyrates adventure. George and his friends have all the clues, but they don't yet know how to read them in order to find the Eye of Eternity gem. As they piece together the puzzle, they learn that Leroy , the master of the underground, has kidnapped Kira Trenov -- a woman who works with George's dad. If the kids don't turn over diamond, Leroy has threatened to kill her. As the stakes get higher, the young pyrate crew gets gutsier, and they battle Leroy in a true swashbuckler showdown in order to save the day -- and the diamond.
Used availability for Chris Archer's The Last Clue
May 2003 : USA Library Binding
August 2004 : USA Paperback
May 2003 : USA Paperback