[ Eren frowns at Hange's phone. So it has something to do with being far away? He hadn't really been paying attention. Is that how the phones work? If you get far away they don't get messages anymore? They seem like magic to him, so he just assumed they always work as long as they have a "charge" in them. ]

He might not have gone alone but it's not like he left any other information.

[ Which is the entire problem, really. ]

Shit. Maybe he did. After all that!