His fingers dug into the surface, and blood began to ooze from the skin. He had killed many people in his lifetime, so he was used to ripping into flesh. It's like cutting into smooth butter, but it's not that easy since you have to rip through the flesh, tissue, muscles, and blood. A cold, soft, rubbery kind of feeling that confirms his suspicions. It's a weird tiny snake.
The skin was entirely black and smooth as it squirmed beneath his palms. It's as if it's aware of his intention, which is why it was squirming even faster. Caspian used his fingers to wrap around it and pulled it from the torn flesh.
The little snake was a fat thing with Sebastian's blood on it. Caspian used his fingers to crush it, which turned into a big mangle of blood and black substance as it fell on the grass beside Sebastian's body.