Unlike the soul rings that drop from every soul beast, soul bones, although produced by soul beasts, are not limited to those killed by them and consist of six parts: hands, feet, torso, and skull.

Each soul bone can grant a soul master at least one additional soul skill, and the higher the age of the soul bone, the stronger the soul skill will be.

Inside the Blue Silver Emperor Cave, the Blue Silver Emperor right leg bone that Xiao Chenyu longed for was a 100,000-year-old soul bone that could grant a soul master two soul skills.

“There’s no rush to find the soul bone, Xiao boy, let’s absorb the soul ring first,” She Long said from the side.

Unlike the optimistic Qian Renxue, he knew that the probability of obtaining a soul bone was not high.

Although top-tier soul beasts are prone to dropping soul bones, Nightmare's age is too low. Even if it drops a soul bone, it won't be a valuable one. He doesn't recommend that Qian Renxue or Xiao Chenyu absorb it.

"I'll absorb the spirit ring first."

Xiao Chenyu was aware of this as well, so he didn't examine Nightshade's body. Instead, he sat cross-legged on the ground, guiding the purple soul ring as it slowly flew towards him.

According to the theory that Yu Xiaogang summarized from the Spirit Hall, the optimal age for the second spirit ring is over 800 years.

However, after reading more of the exclusive texts belonging to the Elders' Hall, Xiao Chenyu learned more secrets.

For some physically strong or top-tier spirit masters, absorbing a second spirit ring for a thousand years is not a difficult task.

Even the thousand-year soul ring of a top-tier martial soul can be absorbed by many geniuses who possess top-tier martial souls.

However, for most Title Douluos, it is not really necessary.

Whether it's a thousand-year or hundred-year soul ring, its effect in battles after reaching the Soul Saint level is not significant.

Compared to the age limit of a spirit ring, the skills that come with it are more important.