After searching biome after biome for the lost shards of an enchanted Ender crystal that, in the wrong hands, could ensure the destruction of the entire Overworld, Stevie and Alex have tracked down all but one piece of the crystal. The magical book they've been using as a guide is finally fully readable--but several pages are missing Following the one clue the book still holds, the friends travel through the portal to Earth, where the last shard may be hidden. There they reunite with Maison, who's just about to celebrate her twelfth birthday. When Maison's family reveals a secret about her ancestors, the friends realize that Maison may be the only one who can track down the final clues that will lead them to the last Ender shard. Can Stevie, Alex, and Maison uncover long-hidden knowledge and put the clues together in time to reassemble the crystal--and stop the Ender Dragon from breaking free of the End? Fans of Minecraft will rush to put the clues together in the fifth Unofficial Overworld Heroes Adventure