Overview of the plot: The Time Capsule That Changed Everything

 An ancient artifact was unearthed on the family estate that Iris inherited. The writings are an early form of

 Cherokee or Hebrew. The Native Americans consider the relic to be a sacred part of their heritage, so Iris

 allows them to research it. They confirm that it is the fourth one of its kind that has been found in America.

 The others are hundreds of years apart in age, but all have the same message. Powerful people don't want

 the message to come out or have any validity. The adventure begins and the danger follows.