They had pushed nature too far this time.
Summoning great whorls of fire demons and unleashing them as a burning tempest, dragging vast rivers of lava from the bowels of the earth and raining it down upon their enemies; the pressure of it built up and became too great to control.
The volcano exploded above them with a deafening roar, the land heaved and shook, and lightning forked its way around plumes of black smoke which turned day to darkest night.
They all died screaming.
Afterwards the rains came, obscuring the immolation with a blanket of white clouds.