The Flame of Time
De Rerum Tempus
A three-part series of didactic books upon the nature of time and time travel. Written mainly by the Time Fixers, with the help of Chronomages and other Time Travelers. It opens with an invocation to the Five Time Lords, who are said to have made the Sea of Time and govern it universally. It consists of many explanations of the nature of Time and recorded experiments along with anecdotes written by actual Time Travelers.