Set dial to liberty, etc.
It is an apparition and only exists when looking from the after deck and then turns into the lady but still provides an explanation afterwards.
// From transcript
You can see a shimmering apparition here.
>look at apparition
The shimmering or apparition appears to be taking on the shape of a lady.
Out of the corner of your eye, you see something forming on a window.
>look at apparition
The shimmering apparition no longer exists. It has coalesced into a fully floating corporeral lady.
// End transcript
PS. You have to "look AT object" not "look object"
"examine object" also works.