Ida heard the loud noises coming from the room in which Ruth and Edwin were. She did not need to use her werewolf hearing power because Ruth's screams were too loud to ring in a human ear too.
She was afraid if someone heard her screams outside the old building. It was a task for Lester to keep Lady Theodora and Lord Augustus distracted from Edwin. Only Moon Goddess knew how he was managing that.
She contemplated knocking on the door. She hoped Edwin would not do something reckless with Ruth. But, the way Ruth screamed to let her go, she doubted Edwin was doing a good job at calming her.
She jumped in fright when the door of the room suddenly opened and, Edwin stepped out clearly raged. Ida tried peeking inside the room but, before she could get a glimpse of Ruth, Edwin closed the door forcefully, that making Ida flinch.
He did not spare her a glance and walked out of there. She could see fumes coming out of his ears.