The Sumeru Stone had a silver-white hue, its surface etched with folds resembling brain convolutions, and it emitted a faint putrid stench.
Li Mo was unsure of the Sumeru Stone's origin, but it was said that the higher the quality, the more its appearance mimicked a brain.
The one he purchased was of relatively inferior quality, yet its price was several times that of ordinary low-grade spiritual materials.
When drawing, Li Mo was extremely cautious. Spiritual power enveloped the Sumeru Stone powder as he intricately etched profound patterns onto the iron cage.
The First Refinement required precise control of spiritual power, a skill in which he excelled.
Under the influence of the Sumeru Stone, the internal space of the Caged Bird expanded to about five cubic meters and gained the ability to seal living creatures.
After completing the First Refinement of the Caged Bird, Li Mo let out a long sigh of relief.
