Professor Sebastian Kaiserling, while on a pre-expeditionary field trip to the Yucatan, stumbles upon what he believes to be a large intricately carved Mayan stone block. The stone is, in fact, a finely crafted chest, containing a metal-like plaque decorated with unusual markings. One of Dr. Kaiserling's newest graduate students unravels the origin of the chest and plaque by deciphering a progressive code used by the chest's makers, 5,000 years ago. Her discoveries lead a team of professors to realize ancient aliens visited Earth.
Sebastian and his archeological assistant, Manolo Sanchez Esteban Menchú, were about to return to Tulum. It was already late afternoon and the sun was low in the summer sky. The sun filtered through the green canopy of the rainforest high above. Shafts of light broke through openings in the canopy. Each shaft seeme...