Fragmented Control. The Salvation of Tempestria, #4

Before the shadow warrior, Kullos, was defeated, he sent the fragments of his dimensional control device through portals in time and space. Each contains vast, unstable power. In the wrong hands they could be devastating weapons. When one drops at the feet of the most dangerous wizard tyrant Tempestria has ever known, he becomes unstoppable by the people of that era. Time is rewritten and the Guardians must Intervene to save history.
It's their first day on the job, and one wrong move could change their world forever. But threats of tyranny and murder are as nothing to the true threat that approaches. Out in the wider cosmos, someone searches for Tempestria. The ancient Enemy that even the mighty shadow warriors could never defeat. And any world she encounters along the way will be Cleansed. (290 pages)