Marceline never thought that this could be the life that suited her the most. Since she met Tom for the first time, her life turned upside down. She was once an innocent little girl who spends her entire time playing with Hambo, now her only occupation is hunting down vampires.
Vampires became a major threat since the end of the Great Mushroom War, the humans' first enemies and their worst nightmare. And in order to live humans had to kill the vampires to protect themselves and their animals. Countless animals and even some humans were victims of the vampires' greediness and bloodlust. Marceline wasn't a human. She was very powerful, so strong to be afraid of vampires. With a single move of her hand, thanks to her demonic powers, she could set fire to every creature that dares to cross her road.
Then why is she roaming all day in the vast lands of Ooo? Apparently, she was doing that to her human friends, her only friends. They were the only ones who welcomed her when she was looking for a family (well, there was a little misunderstanding at first but Marceline was used to people freaking out whenever they saw her face), and in order to return the favor she had to help them protect themselves from the cursed creatures. After all, they were only humans. So vulnerable and so fragile which makes them the main target for every single monster on Ooo.
Holding her wooden stake tighter in her hand, Marceline walked slowly in the deserted street with her zombie poodle Schwabl leading the way, seeking her next victim. She knew that they were hiding from her, so she decided to use the ability of invisibility that she gained after killing The Empress, a very strong vampire lady, and hissed to her dog to stay quiet and hide. Her attempt didn't go wasted, and sooner she observed a black shadow getting near. Marceline smiled at her success and before she could even blink there was three vampires leaning against the old dusty walls of the dark street.
This is my chance! Marceline said to herself before showing up to hunt her prey. Making sure nobody has noticed her, she quietly sneaked behind the one that looked for her as the strongest in the three and with a quick move of her arm she stabbed him straight in the heart making him dissolve into dust and Marceline was more than happy to suck his vampire essence. The other two hissed at her but they backed off when they saw the menacing smile on Marceline's face. Laughing at the vampire's fear, she became invisible along with her stake. The two miserable creatures gulped and before they could know it, the both of them turned into a pile of black dust while Marceline sucked their essence hungrily as if she was eating a delicious snack. After checking to see if there are any vampires left in the area, Marceline called for her pet and then left the place with a satisfied face.
She wasn't aware of the presence of a certain creature, watching her with deep concern.