Fortnite Chapter 2, Season 7 has brought a plethora of new content to the battle royale, with an alien invasion headlining the new update. There are also new weekly challenges you can complete to progress through the Battle Pass. One of the headway challenges tasks you with collecting the Doomsday Preppers Guide in Fortnite. Once you know where to look, you will have the challenge marked as complete in no time at all.

   As you can guess by the name, the Doomsday Preppers Guide is a book that someone made in preparation for an upcoming apocalyptic event. That means something big might be coming to Fortnite Island.

   You can find the book at Hydro 16, a power plant located just east of Slurpy Swamp, on the map. You'll need to make your way there to collect the Guide and complete this Quest.

   If you choose to visit Steamy Stacks, you need to visit the southern building near the eastern stack. The building you need to enter is marked with the numbers "03". As you make your way inside, navigate to the staircase on the bottom floor. The Doomsday Preppers Guide is tucked away just underneath the staircase.

   Once you get there, here's what you need to do:

1. Enter the main building of the Hydro 16 plant

2. Enter the small office on the northeast corner of the ground floor

3. Collect the Doomsday Preppers Guide from the floor next to the computer desk

You just need to interact with the book to collect it, and this will complete the challenge. You'll then net 30,000 XP easily.

   Since this week's Legendary Quests are all focused on Farmer Steel, the book likely belongs to him and Epic Games are teasing future events. Perhaps Farmer Steel is hiding somewhere to prepare for Doomsday.

   You just have to be careful, as this location will be a hotspot for other players that are looking to earn some easy XP this week, so you might find yourself getting attacked by enemies. So, you are recommended to stay ready for a battle.

   That's all you require to do in order to complete this weekly challenge in Fortnite Chapter 2, Season 7.