His Reason

Kyran took all of them inside his Void World. He did this not because the two court members might have planted spells inside the room to eavesdrop but because others were waiting inside.

Still, he did not directly take them inside the tower in the Void World. He had to gauge how much he could trust Iulia first. Because of this, he took them to the path leading to the tower.

Iulia was alarmed but refrained from doing anything that might turn the situation in an unpleasant direction. Besides, she sensed no hostility from the people around her. She also did not find any residue of a transmission array or spell. The sudden change in the scenery did not mean they had taken her away from the palace, but it could be a shrouding spell or something similar that concealed their presence and likely conversation from the outside.