If you're a true boggart you'll come with me... Emily and Jess have returned to Scotland with Mr. Maconochie, the new owner of Castle Keep. And it's clear that the Boggart, the mischievous, shapeshifting friend, is up to his old tricks. All the Boggart wants to do is play, but deep beneath the waters of nearby Loch Ness sleeps someone who urgently needs his help. Will the Boggart answer the ancient cry of his family?