The fewer than twenty Golden Core Demon Birds that remained still possessed terrifying combined strength. But with Lei Dong and the others putting up a stout defense and counterattacking with all their might, they spent several days locked in a chase. Not only did the birds fail to breach the Flying Boat, but seven or eight were killed outright. Monster Beasts were, after all, just Monster Beasts, and Bone-Eating Vultures were not a particularly clever species.
Seeing that the situation was hopeless, the dozen or so Golden Core vultures that remained prepared to abandon their grudge and flee. But Lei Dong wouldn't let them go. He had lost two Golden Core Vengeful Ghosts to the flock, and he needed to recoup his costs and collect some interest besides. He turned the Flying Boat around and led everyone in hunting down the Bone-Eating Vultures instead.
Intelligent races were ultimately beyond the reach of ordinary Monster Beast species. Over the next several days, by employing a variety of tactics, they slaughtered the entire flock, leaving only two or three stragglers to escape. After spending some time gathering all the spoils, they found themselves with a handsome haul. Selling the Demon Birds' flesh and beast souls would bring in tens of millions of Spirit Stones.
Of course, Lei Dong had suffered heavy losses in the battle, so he used one Golden Core high-tier beast soul and one Golden Core mid-tier beast soul to create two Vengeful Ghosts with roughly Foundation Establishment Middle-to-Late Stage strength. Then, even after feeding them the flesh of hundreds of Foundation Establishment Monster Beasts, it still wasn't enough for them to advance. Only after they devoured the flesh of more than a dozen Golden Core Demon Birds did the Vengeful Ghost with Foundation Establishment Late Stage strength finally advance