Harriet, Jack, and Toby are treasure hunters, searching the Minecraft world for its most valuable hidden secrets. In an abandoned mineshaft, they discover what they hope is an enchanted book. But what they've found turns out to be much more valuable. William is one of Minecraft's most renowned explorers. He's a legend in the world of Minecraft, but, under suspicious circumstances, he's gone missing.

The first volume of this best-selling unofficial Minecraft adventure series begins with Runt, our 12-year-old hero, about to choose his future vocation at the Minecraftia school. His options are less than thrilling: farmer, crafter, miner. But what this noob really wants is to be a warrior like his hero, Steve. So when he learns that the five best students in school that year will get the chance to start warrior training, it’s ON.

Fourth graders George Beard and Harold Hutchins are a couple of class clowns. The only thing they enjoy more than playing practical jokes is creating their own comic books. And together they’ve created the greatest superhero in the history of their elementary school: Captain Underpants! His true identity is SO secret, even HE doesn’t know who he is!

Steve has kept himself quite busy, being the only builder in the world....It's a fact. No matter how hard he has tried in the past, the villagers never catch on. So resigned to being the only one with his incredible, if he does say so himself, skill, Steve has settled into retirement from being an adventurer and instead turned to building. After all, he’s defeated the Ender Dragon, explored sunken ships, and even gone on a mad run through the Nether. There can’t be much left to do, can there?

Steve likes to spend his mornings in the NCP village and trade his wheat for emeralds, armor, books, swords, and food. One morning, he finds that Zombies have attacked the villagers. The Zombies have also turned the village blacksmith into a Zombie, leaving Steve without a place to get swords. To protect himself and the few villagers that remain, Steve goes on a quest to mine for 40 diamonds, which are the most powerful mineral in the Overworld.