Hunted by Lord Mortlake, Tom, Quinn, Elanor and Sebastian flee for cover. The unicorn leads them into the darkness of the Witchwood where the wolves howl. In the ancient wood, the four children meet the mysterious blind witch Wilda. She seems to help them on their quest, but can she be trusted? Danger surrounds, but there's no time to lose. The four unlikely heroes must find the griffin, dragon and sea serpent before it's too late.