Rob and Frida's Battalion Zero has vanquished Dr. Dirt, but Dirt's accomplice, Lady Craven, has risen to power to finish what Dirt started: control of every biome boundary to rule the Overworld. The balance of day and night has shifted, and the mobs keep the villagers at bay, making them work ever harder during the day to replace what monsters destroy at night. Battalion Zero has suffered some losses and must regroup and recoup their resources and power.Rob, Frida, Jools, and Stormie are now outcasts who must search the most desolate spaces for plunder as they attempt to gather new recruits who share their cause. Once a legitimate rancher, Rob reluctantly turns to rustling to provide horses to trade and to mount his company of defenders. The four friends become ever bolder and more desperate in their nightly raids against the mobs, and soon they bolster their ranks with outlaws De Vries and Crash, two shape-shifters who might get close enough to Lady Craven's inner circle...

Someone is draining the Overworld oceans of resources . . . but to what end? It could be a ploy by the griefer army to draw Captain Rob and his cavalry members away from the United Biomes of the Overworld capital, which they risked their very identities to defend. Or it could be theft on a scale so grand that only the deepest of oceans can contain it.At the same time, it seems no coincidence that priceless relics and one-of-a-kind gemstones go missing from the new Overworld museum. The spectacular monument to the history of the free world is a worth a fortune. Housing the valuables of the Overworld makes Capital City Museum a target for every rogue player—and for the Griefer Imperial Army, now led by a gang of villains spawned by Lady Craven. When key pieces of UBO heritage are stolen, the troopers of Battalion Zero must pool brains, brawn, and every bit of luck they have to recover them.The six friends must pull off the perfect heist: Captain Rob, leader and...

After repeated boundary attacks by Dr. Dirt and Lady Craven, the United Biomes of the Overworld alliance hangs by a thread and must be rebuilt. Captain Rob, Corporal Frida, and the members of Battalion Zero have made it their lives' work to do it—but they'll have to bring the fight home. With the riches gained from their last encounter with the griefer army, they set out to build and defend a UBO capital. As every player knows, though, life in Survival mode isn't all sunflowers and roses.Bat Zero has bought some time for the Overworld by throwing Lady Craven into Creative Mode. Free from the need to battle for every biome border, the indie cavalry turns its efforts toward guarding one stronghold. They must form a standing army, create federal buildings, and gain the support of other villages. Meanwhile, hostile mobs threaten, and the Griefer Imperial Army promises a comeback—with a vengeance. For security, Captain Rob asks his troops to make the ultimate...

Rob is on his way home from vacation when his plane goes down over the ocean biome. He eventually reaches shore, but where is he? And what new dangers lie ahead? His attempts at survival barely keep him alive until he allies with Frida, the sole inhabitant of a lonely stretch of beach. Rob learns enough from Frida to survive, but he misses life on his family's horse ranch. Determined to find his way home, he sets off to cross the Extreme Hills—and steps into the middle of an ongoing war. The evil Dr. Dirt has enchanted battalions of skeletons to invade every biome and hold every boundary in an attempt to rule the Overworld.Now peace-loving Rob and stealthy Frida must put together their own army and save humanity if Rob is ever to see his home and family again. Using his skills in taming and training horses, Rob forms a cavalry and recruits the friends he makes along the way. Turner and Stormie are naturally brave and quick-witted. Jools and Kim need encouragement but...