Q29In the use of the ''hide in plain sight'' power:
Hide in Plain Sight (Su)
A shadowdancer can use the Hide skill even while being observed. As long as she is within 10 feet of some sort of shadow, a shadowdancer can hide herself from view in the open without anything to actually hide behind. She cannot, however, hide in her own shadow.
Assuming the character has darkvision and is in complete natural darkness, and then encounters another character that also has darkvision, and is in complete natural darkness, in an empty room. Does hide in plain sight work, considering that, while there might be shadows, darkness being shadows, they are not perceived by the onlooker due to his darkvision?
Assuming the hidee (e.g the person that is hiding) is using child of shadows stance to generate shadows while he moves in said natural darkness, would the onlooker see a patch of shadows moving about, due to the fact they are the only shadows in a room otherwise devoid of them, technically speaking.
Darkvision is black and white only but otherwise like normal sight. Darkvision does not grant one the ability to see in magical darkness.