Eren needs no convincing - he's been on board since the word 'vampire'. Unlike Clara, he has no faith whatsoever in bloodsuckers. In his book, not a single one of them is good. How dare they make a move on Greenwich? It's bad enough with Islington around, but now they have to deal with this new nest too? He'll kill them all, if he gets the chance.

"Hang on a sec! Don’t go rushing off without us," he says, quickly gathering his things before following after her.