1.

The first time Ingrid noticed the half-fang watching her brother, the look of curiosity and fascination had made her sick. No one was supposed to look at Vlad like that. He was her horrid little brother, Chosen One or not, and it just wasn't natural. She left the room as soon as Vlad turned around and gave the blonde a smile.

2.

The second time Ingrid spots it is during one of Vlad's lessons with Bertrand. Erin was staring so openly as the vampires moved around the room at great speed that Ingrid couldn't help but flit into a chair beside her.

Erin didn't even acknowledge her, and Vlad laughed as the pain from catching her leg on the edge of the table became evident on her face.

3.

By the third time it was just getting ridiculous. Vlad had successfully hypnotised his tutor into thinking he was a dog, and Erin laughed as the older man barked at a terrified rat. It wasn't until Bertrand was back to himself that Ingrid noticed the marks her nails had left in the cover of her book. The slight pout on Bertrand's face as the youngest vampires left was quite hard to miss, too.

4.

Vlad was sitting in the corner, skimming through his third book on vampiric lore of the evening. Erin sat nearby on one end of the couch with Ingrid on the other. Legs underneath her, she loosely held a copy of Bram Stoker's Dracula, a pen in her other hand, crossing out inaccuracies every few lines. The feeling of being watched kept nagging at her, but every time she looks up her brother was staring at a page of the book (the same one for ten minutes, she noted absently) and the blonde was staring at her own hands.

"What?" She slowly lowered the book and smirked at the surprised expression on Erin's face.

"What?"

"You keep staring at me."

"I don't! I just..." the girl faltered. "What are you doing?"

Ingrid narrowed her eyes slightly and looked down at the book. "Fixing the hundreds of lies in this book." Erin frowned. "Problem?"

"No. No problem."

Ingrid felt a smug sense of amusement when Vlad left soon after and Erin stayed to watch her continue her "work".