When 12 year old Olive Dunwoody goes trick-or-treating, Strangers come to see Olive, and they are very interested in her house with the portals to Elsewhere. Suddenly her parents go missing. Olive vows to get them back, but does not know who to trust. Her mission gets more dangerous as she encounters dark magic with the three talking cats. Olive courageously brings her parents back while learning even more about the stone house she loves on Linden Street.