At the sound of the second bell, after most people in the palace had retired to their chambers and quarters save for the night guards, the Queen could be seen walking down the hallway as she returned to her chamber after speaking with Tyra.
One glance at her and anyone would know that she had a lot on her mind as she walked.
The more she thought about her conversation with Tyra, the more she believed that Tyra was not telling the truth. She was hiding something.
Although Tyra once again insisted that Princess Amber was responsible for Beth's death and her injury, something about how insistent she was and how desperately she was trying to make her believe her, made the Queen extra wary and suspicious.