Vast Black Shadow! A Deceptively Real Mental Illusion! Toying with Them! (Seeking Subscription)

The Bone Spirit Race Darkness Breeds fell somewhat silent for the rest of the journey, becoming even more cautious.

They could sense that as they ventured deeper into the black fog, the skeletal monsters appearing were growing increasingly powerful.

They had been able to kill the first three Bone Pythons with ease.

But the skeletal monsters that appeared afterward required them to join forces, and even then, they had to spend considerable time dealing with them.

Yet the skeletal monsters they had killed with such difficulty contained neither Demon Source Bones nor Demon Source Crystals, leaving them rather frustrated.

Although Gu Ka, Gu Sui, and the other Bone Spirit Race Darkness Breeds said nothing, Gu Suo could already sense their growing impatience.

This was extremely detrimental to their next move.

After all, they had yet to find their true target, the Bone Demon Tree. If their morale was already unstable now, how could they cooperate afterward?

That Bone Demon Tree was far more difficult to handle than the skeletal monsters they had encountered before.

With one misstep, even Advanced Demon Emperor Level beings like them could die here and become nutrients for the Bone Demon Tree, let alone obtain any opportunity.

Boom!

At that moment, the ground suddenly began to shake.

Boom! Boom! Boom! Boom!

It sounded like footsteps drawing nearer from afar. The earth trembled as small hills formed from piled bones collapsed one after another, bones clattering down across the ground.

"What's going on?" Yuan Gungun asked.

"It sounds like something's footsteps. Looks like a massive creature." Wang Teng looked into the black fog, a faint curve rising at the corner of his lips. "These Bone Spirit Race Darkness Breeds are in trouble."

Gu Suo, Gu Ka, and the other Bone Spirit Race Darkness Breeds had clearly guessed