Recovery

I spat another poison, this one wasn't at the serpent, but the lava itself. This was the same poison I used at the Three-Legged Raven sect to cause the lava to overflow by destabilizing the spiritual vein.

Since there was a spiritual vein here, the same effects should happen.

And once my poison reached the lava, it began premating it rapidly and going down.

I would however be dead before the spiritual vein was disturbed so I spat another wave of poison at the serpent. 

I already felt nauseous from using so much Poison Qi but this was the only way.

Once the poison reached the serpent's noise, its eyes reddened and it began screeching.

It was a Madness Inducing Poison.

The serpent began shaking and rattling, smashing its head against the walls of the valley. We weren't even visible to it anymore.

And it was all I needed before the spiritual vein began agitating. The lava flow increased explosively and massive waves began rising.