MINECRAFT: The Golem's Game : Book 5 by Mojang AB

Get ready for adventure, laughs, and a dangerous contest in the Nether with the fifth book in the illustrated Stonesword Saga Chapter Book series, the only official Minecraft chapter book series! Despite being a great Minecraft player, Morgan feels his leadership of the team slipping away as the next splinter of the Evoker King takes the form of a golem and challenges each member of the team to run a dangerous obstacle course. Normally they would work together, but this time they are each forced to face the challenge alone - with no second chances and a river of hot lava waiting for them if they fail! Find out what happens in the next amazing instalment of the Minecraft Stonesword chapter book series.