Merlin and Arthur decided to get Mithian to meet with them in Gaius's room. Merlin went off to the throne room while Arthur went to find Mithian. He eventually found her in her room, sitting and staring out the window while her maid kept an eye on her.
"Good morning, Princess Mithian," he said.
"Good morning to you too, Your Majesty," Mithian replied.
"Would you mind joining me for a walk?" asked Arthur. "It is a beautiful day out, is it not?"
"It is," Mithian replied, and got up. Her maid started to rise, but Arthur quickly turned to her and said, "Why don't you take this opportunity to rest? Surely you must be tired after fleeing from Nemeth."
The maid looked angry for a second, but nodded, saying to Mithian, "Remember to stay safe, Princess."
"I will, don't worry," replied Mithian, and Arthur escorted her out the door.
Once they were a fair distance away from the room, Arthur turned to Mithian and said, "I'm afraid that we're not actually going on a walk, Princess, but I had to come up with some excuse to get you out of your maid's company."
"Wh-where are we going?" said Mithian in a scared voice.
"We're going to Gaius's chambers," replied Arthur. "He's the Court Physician."
Once they got to the room, Arthur opened the door and ushered Mithian inside. Merlin was sitting on a stool, a large book open on his lap, which he closed as the door opened.
"Please sit," said Arthur, gesturing to a chair opposite Merlin's. "Merlin, tell Princess Mithian what's going on."
Mithian went over to the chair as Arthur closed and locked the door. He turned around to see Merlin's eyes flash gold. Mithian looked startled, but Arthur asked, "What was that for?"
"I just blocked the room from being spyed on," replied Merlin. "No one except for the people in this room will be able to see or hear what's going on. Speaking of which..." he turned to Mithian. "I'm going to perform a simple truth spell on you, Your Majesty," he said. "Is that okay?"
"But I told the truth yesterday!" Mithian exclaimed.
"If you did, then you have nothing to worry about," replied Merlin. "But given that your maid hiding behind an ageing spell, I have reason to suspect that not all is as it seems. So may I perform the spell on you?"
"You may," Mithian said eventually.