Start of Darkness, page 43. I see I misremembered a little, actually; he's smiling but his mouth is closed (Dorukan is frowning and Soon isn't in the panel at all).
Nevertheless, I will be quite surprised if it turns out that Girard, or any member of the Order of the Scribble, thought much about "goblins=kill" during their time traveling together, or later came to think "I don't trust Soon because he treats goblin life too lightly."