Sphere Talamh

If you were able to go back in time and change anything: Would you? Could you? Should you?
(A GS-14 government agent) Richard Clary is simply going through the motions of life. He worked hard to reach his present position, but it actually means nothing without his lovely wife, Kathy by his side. She died of cancer a year ago. He and his daughter Crystal have struggled to continue without her. Crystal's best friend Julia died shortly after at the hands of a serial killer. Rex Munday, the killer is still on the loose and free to kill again.
Richard stumbles upon a time-travel object: the Sphere. By accident, he and Crystal transfigure to the past. An adventure of a lifetime is before them. Actualizing the opportunity, Richard and his daughter embark on a voyage through space and time to right the wrong in their lives.
When they do visit the past, the killer is hot on their trail. Together they must survive and figure out how do you stop a serial killer?