In Eighth Grade Bites by Heather Brewer, the main character is Vladimir Tod, who is half human and half vampire. Two side characters are Vlad's aunt Nelly and his best friend, Henry. Henry is a human and the only person Vlad's age that knows Vlad's true identity. Vlad, who is 13 and currently an 8th grader at Bathory High lives in the small town of Bathory. (I find this particularly funny as this is a story about vampires and ther was a female "vampire" named Elizabeth Bathory. She was known as the Countess of Blood).
So far, in my book, the plot appears to be clouded in mystery. There are very short chapters in which a dark dressed man is hunting people who are associated with Vlad. (Again, I find humor in this because one of the characters that is mentioned in my book as a bit character is a young man named Edgar Poe - as in Edgar Allen Poe...that's just really hilarious).
p. 29 "The man smiled, careful to keep his fangs hidden behind closed lips. 'It's quite all right. Edgar Poe isn't it?'"
For the main story, Vlad is trying desperately to hide what he truly is. However, there is a new teacher at his school is requiring Vlad to explore who he really is in the form of a "research" project as part of a mythical creatures class.
p. 49 "Vlad's jaw dropped, and as if on command, the letters stopped moving. Vlad read the new word they'd formed aloud.'Vampire?'
He couldn't do vampire! Fear of the sun, craving for blodd, inability to enjoy Italian food, everything that he really was? This was going to suck."
There is very much a mystery about Vlad's history and these shady characters who involve themselves in Vlad's world.
Since I am still relatively early in my book, I can only see the beginnings of a Universal Theme in the story. Vlad is a young man who is questioning who he is, trying to determine which path he wants to explore about his true self...this, to me, comes across as human nature. This is because it is often within humans, especially young adults on the precipice of deciding who they want to be, to attempt to discover who they really are.