The Plumed Serpent's gold

"After the crew of The Angry Flea make a startling discovery near Campeche, Lousie and Benjamin are ever more determined to find their father. Along the way they meet Heehee, a mysterious local who acts as a guide. But nothing can guide them through the mayhem that erupts upon their arrival in the great Mayan city of the Plumed Serpent god Kukulkan!"--Back cover.