Aria O'Baird:
Warren - Aria could give you cover in your approach - either veiling or mind shielding. Alternately she could rustle up some of the black's victims for other forms of help.
How about a mix. A thaumaturgical mind shield before I head in combined with some aid of the vengeful ghost variety.
With both Aria and Branwen providing remote support, Warren would be much more likely to succeed. That works for me.
The big question is, what Aspects do you pick up for your involvement in my story? I picked up
Guardian of Innocence.