One

Writing Prompt:

One day, a man approaches you, claiming that he's a secret agent and that you're in danger. Being an ancient vampire, you laugh it off, but decide to play along. You never expected to be surrounded, weapons aimed at you and ready to kill. They don't notice the man beside you, and when you turn to talk to him, they give you an odd look. Little do you know that you're the only one who can see the supposed 'secret agent'.