[Eren's interested to know what "lesson" Armin is referring to as well, but he keeps his eyes on Aubrey for the most part, only glancing back briefly at his friend. Armin's smart. His brain is his greatest weapon. He'll figure something out...Maybe he already has.
[Eren's not sure he really wants to hear what he was supposed to "learn" from all that, though...]
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[Eren's not sure he really wants to hear what he was supposed to "learn" from all that, though...]