The demon's guise is effective; despite the likelihood of what it is they're facing, and the very real danger it presents, they see only plain Edgard, whose present conduct is thus not so much fearsome as it is plainly obnoxious. For a moment, Viktor wonders whether this is intentional. Would a demon be annoyed to know it's only annoying?

In any case, Jayce seems to have picked up on the approach, and while he continues to put himself dead centre of so-called-Edgard's attention, Viktor quietly engages the Thaumoscope one-handed. He does not yet raise the device, but slowly depresses a switch, then works the dial, minor movements memorized and made with only his thumb...