Taylor has a vision of Uncle Charlie in trouble at the Hidden Valley. She and the gang travel there, only to realise that the valley is trying to keep them out and that they are being relentlessly pursed by Raquel.

A mysterious noise is heard throughout all of Rock Island and as Taylor and the gang investigate, they are met by a girl who claims to be Lila's biggest fan. But nothing is quite what it seems - about the eerie noise or Lila's unexpected fan.