Delicate tendrils of smoke curled up from the floor. They had no obvious effects on us, and indeed seemed intent on escaping, so stealthily did it snake across the ground toward our enemies. But the effect it had on the monsters was worse than we could have feared.

The fumes seemed to intertwine with the very essence of the abominations like some symbiotic energy. It seemed that if the host were destroyed, a massive exothermic reaction would occur as a result of the altered vapor being exposed directly to the air.