As the patron God of the Guild turned to him, Vincent prepared to stand his ground and explain himself if need be-

[i]"...h-hi. A-Are you going to the Labyrinth?"[/i]

Right, he remembered how it had been when he'd 'met' Thoth the last few times he'd checked in at the Guild. Any remaining idea that the summons had come from her vanished- half due to her question, and half because of the way she stared at him like he was a poisonous snake about to strike. 

At the very least, though, she would be able to point him in the right direction. 

"Good afternoon, Miss Thoth. I received summons-" He began as politely as he could manage for the God in front of him, reaching into his coat pocket and producing the letter that had been sent to him, before showing it to the God, "I assume they were from another Guild member, and I'll further assume they have something to do with the Labyrinth?"

The question was complete formality; to Vincent, it seemed fairly clear that the day the Labyrinth opened had finally come. That would explain the larger-than-usual crowd around the independent zone, as well as why there didn't seem to be many- if any- guild members in the building. At least, if she confirmed as much, he could see about being directed to other Guild members. From what he'd heard of the Labyrinth, it wouldn't do to traipse around in the place by himself.