Grand Elder Yagoda is a truly talented woman but she ignores the sheer brutality of the world, she lacks VISION. Always staying to her safe ways. But bloodbending...bloodbending is the key to scientific breakthroughs! And my....'willingness' to explore new ground...is why I will soon surpass her in medicine. Something that YOU'RE going to help me with street rat!
He smiled and looked up from his work,"oh you might not be that happy when you find out the kind of work i've done" he ominously said, his eyes flickering to her arm scar. "And I plan to keep you here a while longer if you don't try and help me attain my goals. Don't fulfill your usefulness just yet Aurora, unconscious or awake you're an extraordinary specimen." He almost passed it off as a compliment. "Ah the experiments i've performed with you! You would just love them." He spoke like a manic child, innocently obsessed with something deranged. "There was this one where I made your blood recoil- your blood can have a mind of it's own yaknow, and and and this one where I put you in a lucid state and you were still bending in your sleep! Amazing, simply amazing. Surprised someone like you isn't into that whole pro-bending field that's all the rage- still with that bloodbending you'd ravage your way through the competition" he said jokingly, passing the horrible subject off as a quippy one-liner.
"Jekyll/Hyde? Wow, you really believed that awkward little posh kid act? See it's reasons like that why you ended up here, with your leg ligaments torn and barely dressed. As for my chivalry skills i'll just have to merely apologise. Pleasantries come after scientific research i'm afraid."
..."Your polar bear dog didn't react so nicely to your treatment, but you know I said the serum can knock out a polar bear dog? Well, I can confirm that it most definitely does. The overgrown dog is chained out back. He's unharmed of course, the bloodbending orphan powerhouse is the main show so I wouldn't touch a hair on his lovely head. You on the other hand...aha, he might not be too happy to see you..." he smirked off into the distance and swung open a door behind him, there lay the polar bear dog shivering chained to the wall. Cassius had successfully contained the monster, and he wasn't talking about the dog.