[Those three words hit Izuku harder than he ever would've expected. It's been so long since he's heard them, and yet they're ingrained in his being so deeply that he hears All Might's voice clear as a bell in his mind as he reads them. He doesn't know if that was his friend's intent in using that specific phrase, but he knows it's not something Todoroki would just type without thinking, that he picked those words because they mean something to Izuku. It eases his anxiety a little, but more importantly it puts the tiniest smile on his face, just briefly.
Right. He's not alone, and his partner isn't a stranger. This is his friend, who he trusts and respects, who he knows and who knows him. He doesn't have to face this by himself.
He takes the other boy's forearm in one hand, positioning his grip so Todoroki can grip his own in return. This should let them at least indicate they've noticed something by squeezing the other's arm. Then he leads them very slowly, trying to pay attention to how the sound changes based on their proximity to that room (without thinking about whatever might be causing it or any other effect on his hearing, hopefully). Step one, figure out if there's a basement or lower floor for it to be coming from.]
tfw you've read Poe but your character hasn't
Right. He's not alone, and his partner isn't a stranger. This is his friend, who he trusts and respects, who he knows and who knows him. He doesn't have to face this by himself.
He takes the other boy's forearm in one hand, positioning his grip so Todoroki can grip his own in return. This should let them at least indicate they've noticed something by squeezing the other's arm. Then he leads them very slowly, trying to pay attention to how the sound changes based on their proximity to that room (without thinking about whatever might be causing it or any other effect on his hearing, hopefully). Step one, figure out if there's a basement or lower floor for it to be coming from.]