hellfire vs ghoul

I saw her shudder a little. A tiny sound escaped her unmoving form. She was dead already - I knew that. I've seen it more than once. Her heart was still laboring, but whatever time she had left was a mere formality.
My vision went red with rage. Or maybe that was the Hellfire. I called upon still more of the dark energy in midleap, staff gripped in both hands, and rammed the tip into the small of the ghoul's back as I snarled, "Fuego!"
The blow, with all my weight and power and speed behind it, probably broke a couple of the ghoul's vertebrae all by itself. The fire spell came rushing out at the same time, filling the tunnel with thunder and light.
Tremendous heat blossomed before me, rushed into the ghoul, and tore him in half at the waist.
The same thermal bloom washed into the stone wall behind the creature and rebounded. I got an arm up to shield my face, and I dropped the staff so that I could draw my hands into my duster's sleeves. I managed to keep much skin from being directly exposed, but it hurt like hell all the same. I remembered that, later. At the time, I didn't give a flying fuck.
I kicked the ghoul's wildly thrashing lower body into the black ness of the mine shaft. Then I turned to the upper half.
The ghoul's blood wasn't red, so he burned black and brown, like a burger that fell into the barbecue just as it was finished cooking. He thrashed and screamed and somehow managed to flip himself onto his back. He held up his arms, fingers spread in desperation, and cried, "Mercy, great one! Mercy!"


White Night Chapter 23, Page 230