tunnels ? maybe
check this out https://mds.marshall.edu/cgi/viewcontent.cgi?article=1006&context=psychology_faculty
The mother who started the whole thing was whacko in my non-professional opinion. She was the type who would change her child's sex to garner attention for herself. According to her every teacher molested her son but police could find no evidence.
The kids all initially denied that anything happened and the parents, who could walk into the school at any time, never saw anything amiss.
Enter Wayne Satz, KABC reporter. He blew the story up for his own purposes and had a 'relationship' with Kee MacFarlane the shrink who 'interviewed' the children. When the judge watched tapes of her with the kids, he dropped lots of the charges. She lead their testimony shamelessly. It is very easy to get a young child to say what you want them to. After about three times hearing the same question, many children will tell you what they think you want to hear. At first, they will tell the truth but they figure out that you want to hear something else and they start making things up.
Miss Peggy's pre-school had existed for a long time, the reputation was spotless, the horrifying stories told by some of the kids just could not have happened under any circumstances. Really, kids took plane flights, saw other children sacrificed in the presence of Chuck Norris, returned to school and went home like nothing had happened? It does not make sense. And that which seems incredible probably is.