"Everyone, don't be surprised. Even with the help of the Magic Computer, it took me and my subordinates more than ten years of repeated calculations to finally find a way to force our entry into the Gate of Wandering."
As he spoke, the pride on Vid's determined face was soon replaced by a bitter smile and a helpless shake of his head.
"But what I did not expect was that although it was easy to enter Gate of Wandering, trying to leave this Barrier Area through calculations was even more difficult than ascending to the sky and cannot be compared to the calculations required for entering."
Hearing Vid's words, Leo Ray rubbed his chin and asked, "So, Trainmaster, you haven't found the [Divine Stone] here, have you?"
Leo Ray clearly understood that, as Sarah had said,
After entering the Gate of Truth, the only way to leave was to pass the trial and obtain the [Divine Stone] stored here. There is no other way.
Hence, the answer was self-evident.