The Shadow King and Undying King were just as shocked as everybody else to see the Collapsing Lightning Duke display so much power while two Titans had been hiding this entire time.
Soon, dread appeared in the Dark Kings' eyes as they saw the Void King surrounded by the Collapsing Lightning Duke and the Scarlet King. Although they knew the Void King was immensely powerful, he was clearly enduring a severe backlash and might not be able to resist the duo's onslaught.
Unfortunately, the Shadow King and Undying King could do nothing to assist the Void King in his fight. Just as the duo had blocked the First Collapsing Lightning Pillar and the Patriarch of the Aegon Clan from helping Cain before, now the tables had turned.
Cain and the Collapsing Lightning Duke did not hesitate for even a second. The moment their energy pools peaked, they flashed toward the Void King with nothing but killing intent.