The Paladin of the Night (Rose of the Prophet, Book. 2)
The Great War of the Gods means nothing to the  proud people on  the mortal planet--until Akhran the  Wandering God decrees the union of  two mighty  feuding clans. Though the families are fierce  Warriors,  they are few in number. Even the marriage of  Khardan and Zohra is not  enough to over power the  strength of the invading army or prevent the   imprisonment of their peoples. Now, with Khardan and  Zohra  mysteriously missing--seemingly cowards who  hid from certain  defeat--the two clans have lost all  hope of ever again seeing their  beloved open  skies. But Prince Khardan and Princess Zohra, aided by   the wizard Matthew, have been given another  mission. . . a mission  that at first seems less useful  than counting the many grains of the  desert sands,  but soon proves to be of far more lasting  importance.