Ingrid attended Grace's funeral. When she went to the bathroom, Her madalian and boots were stolen and she was locked in a closet by a Vesper. The Vesper heard the reading or the will. Ingrid's spy took the money instead of the clue.
The real Cousin Ingrid was going to go to the bathroom during Grace Cahill's funeral, but she was ambushed by a Vesper, who stole her her medallion and told her, "The Vespers are watching." William McIntyre and Astrid Rosenbloom found her bound in the closet after Grace Cahill's Will reading. Later, Hamilton Holt saves the Vesper impersonator from the fire in Cahill Manor.
Ingrid wears a huge gold medallion and heavy black boots, which was stolen from her by a Vesper.