Read the excerpt from "Amigo Brothers.”Both pounded away. Neither gave an inch, and neither fell to the canvas. Felix’s left eye was tightly closed. Claret red blood poured from Antonio’s nose. They fought toe-to-toe.The sounds of their blows were loud in contrast to the silence of a crowd gone completely mute. The referee was stunned by their savagery.Which adjective best describes the tone in this excerpt?