Stone Signs

It is the year 3079 C. E. and Dan Kelley, a young history professor, unintentionally discovers prehistoric cave symbols carved into the back of a uniquely crafted paving stone. The stone was created by a mysterious mason who years earlier buried similar stones mapping a peculiar course across the uninhabited prairie. Following those clues Dan was able to retrace his parents' path and uncover details of their disappearance, which had left him orphaned at age four. Does the new discovery of the cave symbols offer any insight into his parents' demise? What do these symbols mean? Similar symbols appeared on the other side of the world, but from a much earlier era. Could this commonality be evidence of a "first language" of the human race? If so, what is the message? Join Dan on his return expedition to the desolate prairie as he seeks to answer these questions.