They dock, on the lightline-charging station, even as it continues to move through space.
Opalyn is escorted out, and towards one of many platforms that rise up out of the station, each platform crowned by an obvious magical circle. The platforms vary in what else is on them besides a magical circle, but many of them have what look like bondage furniture; pillories, whipping posts.
(The platform her escort is leading her toward does not have any of that exciting stuff, though.)