Martha had come to Uriel's office because she still wasn't convinced of everything that Uriel had said earlier. Things just didn't add up and Martha came so that Uriel would explain it a bit more to her and clear things up, but Martha never expected to see Fiona standing there without any restraints on her! It was obvious that Fiona was never captured at all!
Martha's eyes took in everything that was happening inside the room quickly before she finally locked eyes with Fiona. Fiona was too stunned by the interruption and in that moment, she hesitated for one second. That one second was all that Martha needed! Martha already knew what sort of power Fiona had, so Martha turned her eyes away from Fiona's own quickly before she turned and bolted! Fiona cursed!
"No!"
[Get her! She's going to press the emergency button!]