Owen Bertram didn't give chase, as he still needed to stay behind and oversee the overall situation. First, he had to eliminate the hidden Demon Clan elites in the camp, then, taking advantage of the momentum of their victory, seize the chance when King IIias' territory was empty of soldiers to recapture as much lost ground as possible!
From the moment when Harrison got 600,000 Ghost Soldiers from Owen Bertram, he had been dumbfounded. When Owen Bertram glanced at the distant sky, Harrison also saw the hidden Tire-7 Demon Saint. The reinforcements of the Demon Clan had actually arrived so quickly! What he had not expected was that Owen Bertram scared the powerful Demon Saint away by just giving a glance!
In Harrison's heart, his evaluation of Owen Bertram's real strength kept rising.