The glyph is all it takes, really. For his own father was on the Convocation; it would have been remiss indeed had Erichthonios been unaware of their marks.

"Emet-Selch! A-Aye, 'tis more than sufficient!" Could he be here on Convocation business? Had he come to investigate? Was there some manner of disruption in the aetherial realm of the Underworld that could be involved in this?

For once, Erichthonios' mind is whirring with questions. None of which actually manage to reach his lips.

"I-- did not expect to see you here."