[The array reappears and spells out an extra measure of the tune, curving around when the room does not extend far enough for it to finish. This repeats, longer, this time more rapidly, as it snakes back in the other direction. The Marquis steps out of what he can see is the usual path.]

That's quite fascinating, but I hardly see how --

[What he doesn't expect is for another tendril to start right beneath where he steps, and he goes stock-still for a second, seemingly stunned]