Noise was fading in and out as Tony’s heart started pounding in fear. He knew whatever the powder was wouldn’t act fast enough to make his heart pound as it was, that was pure adrenaline and fear doing that. As a magical, Tony didn’t have to worry about no-maj bio-attacks but his co-workers did. Tony’s fear wasn’t for himself, it was for everyone else that was potentially now exposed to whatever was in the envelope.