Mentioned golden-haired friend, now bespectacled, was in the facility long enough to overhear the rebuke of the irked librarian.
'Ugh. Guess I have to rely on Mikasa for library rides now...' The non-school library was not such a short distance away from Armin's home. 'I have to call her anyway.'
Sitting on the stairs on the library and putting his books aside Armin started to look through his contacts. Finally getting to 'Mika' he pressed the call button. Three rings.
"Mikasa! Eren was at the library!"
"What?! Really? Is he with you?!"
'So she really didn't know...' Armin's eyebrows furrowed, then arched up in a jolt. 'Crap. Eren. I left him in the library!'
"No, but I'm pretty sure he's coming out right now."
"I'm going to pick you guys up. Just give me a second."
"Somethings...off. Eren doesn't seem to remember going missing. I don't know what to do..."
"...Okay. I'll be there as soon as possible."
Armin felt the corners of his previously sullen lips turn up. "Thank you, Mika."
"..." Mikasa's stunned silence was understandable. He hadn't called her by that name for years. Since primary school actually.
"See you soon." And she hung up.
Armin tucked his phone into his messenger bag. That happened to be the moment he noticed there was presence behind him.
'Took him long enough.' Armin turned to look at the person who he thought was his his friend. He was not.
"Who-mmph!-" The stranger had covered his mouth with a cloth.
'Not good.' he could of sworn heard a loud crunch just before the world went dark.