With each word spoken, Locke felt increasingly lost. Costumed hero he could at least wring a bit of information from, if just because he knew the two words separately - put together, he had to wonder if she was some manner of theater agent but that really didn't seem to fit with how she was acting or what she was saying. Antarctica and Cardiff, as place names, were just entirely nonsensical - there were no such places anywhere in Therin and he had studied maps enough to know the landscape fairly well. The mention of somehow using mechanical means to travel from one destination to another simply boggled his mind and threw him entirely off-center.
Fortunately enough, the madame's costume seemed to effectively distract the Captain which allowed Locke enough time to think. The two seemed to understand the Therin which he was currently speaking without any trouble but he was rather curious to see what would happen if he changed his language to Vadran - if confusion resulted, then he could guess that they were native to the same general area as he and, if they understood, then that painted a better picture of what he was dealing with.
"And I'm Leocanto Kosta." Though he had no reason to think that either of them would know Locke Lamora from a beggar on the street, he had become so used to the idea of pulling on personae that it seemed a natural act to give any name but his most common. Besides, if this really was a case of past antagonists making good on their threats, it was best to go in with the protection of a false identity. "Perhaps I'm missing something, but I don't necessarily see any link among us that would answer why we were all gathered to this place - maybe it would be best if we explore our surroundings to see if there are any clues to be found?"