This underground cavern was enormous. Song Wen and Rong Shao pursued Tu You in the same direction for over a thousand li, yet still saw no edge to it.
The Ghost-Faced Demon Serpent behind them continued its relentless pursuit, though it had not caught up for the moment.
Suddenly.
Song Wen and Rong Shao almost simultaneously noticed with keen senses that the surrounding netherworld ghost qi had changed.
It had grown much thinner.
Moreover, the ghost qi was converging toward the direction in which Tu You was fleeing.
The two exchanged a glance. Neither understood the reason, but any change meant there had to be some mystery ahead.
After traveling another hundred-odd li, the surrounding yin qi thinned further, expanding the range of their divine senses to around twenty li.
As a result, they directly detected Tu You fleeing ahead of them.
Tu You also discovered them.
A flicker of panic first crossed Tu You's eyes, only for them to turn sinister moments later.
"You two things that don't know whether you live or die actually dared to follow me. Lord Lü Ling is right ahead. He will definitely make the two of you wish you were dead."
A cold gleam flashed in Song Wen's eyes, revealing undisguised killing intent.
That so-called Lord Lü Ling should be somewhere ahead, and the secret of this Yin Spring Cave was most likely there as well.
Tu You was of no further use.
With a thought from Song Wen, the Soul-Splitting Blade, which he had not used in a long time, shot forth. It became a streak of sharp light and sped straight toward Tu You.
Tu You immediately summoned a corpse coffin.
The corpse coffin was about ten feet long and had no lid. Inside lay a corpse puppet over eight feet