Pyrrhon heard him- he just chose to ignore him in favor of more fire.

"Yeah... the results were quite a bit more explosive than Pyrrhon thought they would be." He floats over, looking over the debris. "Is there anything left...? Oh, a keyboard!" Pyrrhon excitedly picks it up out of a pile of ash- and it just kind of snaps once he lifts it. "Well, half a keyboard... Okay, yeah. Pyrrhon's pretty sure there's nothing left."

He awkwardly rubs the back of his head- yeah, he kinda screwed up there. Not that he'd really say so, quickly thinking of some way to try to salvage the situation. "Well, look on the bright side! Uhhh... it's, easier to get back out now! Don't have to go all the way back up." He says, while floating out the ruined remains of the lab and into the open air and sunshine.