Erma Felna EDF page 131

The empty dialog boxes are to indicate that while the characters might be talking aloud, they can't hear each other, so neither can we.
2016-11-22 00:02:57 
Things are getting...messy.
2016-11-22 12:48:14 
I always thought you did forgot to put any dialog in the speech balloons or it was a mistake from the printers, but it turns out to be a artistic choice instead. Thanks for the explanation!