Travers is supposed to be whispering in panel 4. I think I need to work out how to show that better.
Perhaps you could make the font in italics to represent a whisper?
I go with "smaller font" as my whisper tactic, too. I'm not sure if it's worked or not, but I've not canvassed my readers. Oh, now I have doubt.
And it's funny that you bemoan this interrogation set... my emergency buffer set while packing/moving/unpacking is an interrogation set.