The summary for the book is:
Eric Stapleton, a man of the 20th Century, is rescued from a certain death in the North Atlantic of World War II to become a Shepherd of the Arisa in the 41st century. As a Shepherd, he is responsible for guiding and protecting the gentle people of the Arisa as they travel in time: observing history, collecting “lost” art, and, occasionally, altering the flow of time. He must adjust in many ways to a world that is profoundly different from the world and time of his birth. The machines of the Arisa will give him anything material that he wants, but will not give him his privacy. The Archives of the Arisa will teach him everything, but not how to stop remembering the loved ones that he has lost. Eric Stapleton survives where other Shepherds die, mocks a world that disdains him, and thrives as a trusted agent of the Arisa.
When a disaster of astonishing scope and origin destroys almost all things Arisan, Eric is thrown into the deep past with little more than the clothes on his back to “do what he can” to change the events in the past leading up to the disaster. It will take all of his decades of experience, his willingness to work with an old and bitter enemy, and his devotion to his adopted world and people, “to change history for the better.”
One other item that may be of interest from a graphical perspective is http://jonstonecash.com/journal-sha…the-arisa/.
I have uploaded my attempt at a cover. I have purchased the clock image from ShutterStock.