These spiritualists are such a joke. They've done nothing while multiple dangerous spirits are actively killing people. And now they're acting high and mighty as if they're worth a damn.
It's a common superstition. Ghosts and other creatures will imitate your loved ones to lure you in do whatever to you.
When I was in scouts back in school, when we went camping, we would use nicknames to call out to each other. There was this belief that using someone's real name would cause...