[Answer] This creature is legendary throughout the world, under different names. It is the living dead, a man (or woman) who feasts on the blood of the living. It roams the night in search of prey, but is destroyed by sunlight.

Step 1 : Introduction to the question "This creature is legendary throughout the world, under different names. It is the living dead, a man (or woman) who feasts on the blood of the living. It roams the night in search of prey, but is destroyed by sunlight."

...The most famous vampire, Count Dracula, was based on a real person. Bram Stoker loosely based his character on Vlad Teppes, aka Vlad the Impaler, who lived long ago in Romania. Transylvania is a real place in Romania as well.