Timelock: the Caretaker Trilogy: Book 3 Reprint edition

Is this the end of Jack Danielson?
Jack Danielson has spent the last year risking everything to save the oceans and the Amazon. Now, he?s more than ready to get back to a normal life and spend some quality time with his girlfriend. Too bad the world has other plans. Wrenched away once more from the woman he loves, Jack is thrust through time to the fiery deserts of the future to battle cyborgs, zombie warlocks, and scorpions the size of tanks. But he doesn?t just have to save the Earth. As the final confrontation with the dreaded Dark Lord looms, Jack must decide once and for all who he really is?prince of the future or humble human of the present?and choose between the two women who love him. An impossible decision, if he stays alive long enough to make it. . . .