Before you ask, Eren's not here - investigating or infiltrating. He must be on walkabout. I'll try to bring you along when I contact the other side so you can talk to him, if he isn't infiltrating over there - I think I should be able to manage that.

[Though he's still not showing how scared he is, he's not hiding his anxiety as much around just Mikasa, nor the danger this place represents.] ...At least he's safer, over there.