"Which Ghost Witch Kingdoms do you all know?"
"Which Kingdom is the closest one to here?"
"Is there anything particular in each Kingdom that we need to be wary of, any formidable beings?"
"Is there any other place that we need to know about?"
...
Two Great Witches were separated by a transparent water screen barrier, able to see each other but unable to hear the other's words. Two Wei Yuans stood opposite them, each asking questions separately.
Wei Yuan made it clear that if he found anyone lying, they would be thrown to the Sea Grass to be fed.
Determining lies was simple: if the answers to any question differed between the two Great Witches, it was certain that one of them was lying. And whoever could not prove that the other party was the liar would also be fed to the Sea Grass.
