"When Kiri, Oscar, and Malik meet up after school to play an adventure in Minecraft Earth, they stumble upon a secret door that takes them out of the real world above and whisks them into a hidden underground mineshaft. Transformed into their Minecraft avatars, they must now face Minecraft monsters that are all too real. And as they try to help a band of lost villagers beset by giant poisonous spiders, they're confronted by the biggest Minecraft menace they've ever seen"-- Provided by publisher.