Here's another one. There was once a knight bold and brave. He felled countless opponents and was said to be fearless on the battlefield. However, legend has it that there was one foe that set the knight quaking in his armored boots. The knight feared this monster because of the rumor that surrounded it. It was said that anyone who slew the beast was destined to spill his own blood or the blood of other humans in the process. Can you guess the identity to this terrifying foe?