Consider the scenario:
A Toreador and a Lasombra are engaged in a fight. The Lasombra uses her Shroud of Night (Obtenebration level 3) to cover the area with pitch black shadows.
The question is:
Will Entrancement (Presence level 3) work to help the (otherwise probably doomed) Toreador?
According to the VtM 3rd edition, a Lasombra using Shroud of Night can see inside her own shadows. The book says that sounds are muffled, but does not make it clear if they are muffled only to others or also to the Lasombra casting it. I understand that if she is able to see inside that shadowed area, she may also be able to hear normally (in her shadows). Is this correct?
Nevertheless, Presence requires the Toreador to be visible (the book mentions that someone affected by Presence can easily resist it by turning her back to the vampire and stop looking at him).
So, am I right to assume that Presence can be useful for the Toreador in the aforementioned combat?