The Necklace of Wisdom

After being threatened to be arrested by a nasty councillor, nineteen-year-old Leo Barning hides up on a field where he meets a friendly woman named Miss Frivie. She tells him about the Necklace of Wisdom and that nobody could find it. Leo soon falls underwater to the animated world of Watership Down as a silver rabbit. It this there he shall soon find the Necklace of Wisdom.