Mitchell knows Ivan is right. He also knows his previous response was patently sulky. Although the comment about Ivan's feeding situation in Bristol gets a look.

"Nothing is simple. Neither is the concept of willing donors. It's not like a cup you fill and then that's it, you're full. If I'm being honest, sometimes, even if I'm feeding every so often, I still feel this need to keep going. Herrick kept pushing me but the desire was always there. I don't just want blood, I want to kill. But I know that can't be right. I don't know where that comes from --well, I mean, it comes from everywhere. Doesn't it?"