Kneeling beside her silent form , he let his tongue travel the length of her neck , the blood there still sweet , but too dry , wrong . He growled . Her heart still throbbed , but it was pushing more venom than blood now . The girl twitched , brushing off the small purple flowers that sentimental fool of a vampire had left for her along with his gift of immortality .
According to the above context, answer the following question.
Why would the bite hurt so much ?


It was from the undead .