The Rune Stone Shi Lan absorbed was the size of a fist, like glass. The runes sealed inside were clearly visible, like a bolt of lightning.
A mysterious energy flowed from her palm, passed through her meridians, and reached the spiritual platform at the top of her head. It became a thread of lightning and merged into Shi Lan's Primordial Spirit, like a drop of water falling into the ocean, without stirring a single ripple.
Shi Lan slowly opened her eyes. A thread of lightning leapt from her fingertip and shot out in an instant.
Bang!
After a muffled thud, a charred indentation the size of a fingertip appeared in the bluestone wall.
"The energy contained in this Rune Stone is too meager."
Shi Lan shook her head slightly. She had just used the energy contained in that Rune Stone.
Its only remarkable quality was that, though its energy had been exhausted, the lightning-like rune remained preserved in her Primordial Spirit.
If she used this rune with her Primordial Spirit's golden body, the thunder it unleashed would be enough to destroy this city in an instant. It could barely be considered a low-grade offensive technique.
Compared with painstakingly cultivating offensive arts, runes were far more convenient and efficient.
"The energy contained in higher-grade Rune Stones is enough to bring about a qualitative improvement in your Primordial Spirit's golden body. The runes within them are also much harder to understand than this one."
Samsara melted the remaining Rune Stone, turning it into a layer of rune-light that lay hidden across Shi Lan's skin.
Though this layer of rune-light was extremely faint, any battle master who had mastered runes could sense it.
Shi Lan conjured a new face and headed for the Rune Tower once more.
"You may only enter the