Azure Sacred Thunder

Within the furnace, crimson-gold flames burned madly.

Gu Qing's flesh had been burned until it curled and blackened. The gray-robed elder and the burly elder were in even worse condition—their limbs had long since been reduced to ash, their torsos curled into two charred lumps of coal as they rolled and twitched futilely within the sea of fire.

The flames licked away the last traces of life from the three of them, burning their bones until they crackled like dry firewood bursting apart in a blazing inferno.

Lu Changsheng stood quietly outside the furnace, his hands clasped behind his back, his azure robe fluttering slightly in the heat waves. His gaze was calm, without the slightest ripple. Three breaths later, only three piles of gray-white ashes remained within the furnace. Not even a wisp of lingering soul was left behind.

Seeing that the three had been burned until not even ashes remained, Lu Changsheng immediately raised his hand and dispersed the hand seals.

Rumble!

The three-hundred-meter-tall crimson furnace slowly faded away. The flaming runes on its body went out one after another, turning into crimson motes like drifting fireflies that scattered into the void. Yet that scorching aura capable of incinerating the heavens and boiling the seas still lingered in the air. The branches and leaves near the World Tree had been roasted yellow and curled, while scorch marks like flowing lava remained on its bark, releasing waves of acrid burnt stench.

Lu Changsheng lowered his head and looked at his hands. Several spirit seals had yet to fully dissipate from his palms, giving off a faint crimson glow beneath his skin.

"The power of a high-grade seventh-rank spirit array truly is formidable..."

He murmured to himself, his tone carrying sincere admiration. Minggu Sea Emperor's understanding of spirit arrays was