This was recorded at the very end of the investigation. You’ll hear both Laura J and Mike thanking the spirits for their presence. This is followed by an unidentfiable sound/possible disembodied voice saying something I can’t make out. Then, right after this, a small but clear voice says, “Go home!” in between people talking in the background.
I don’t think one of said, “Go home.” If it’s the spirits, then it seems like an appropriate–although slightly nasty–thing for them to say to us at the end of the investigation. I also don’t think this was one of us but perhaps someone else can confirm that for me.