Collecting the Doomsday Prepper's Guide in Fortnite is one of the many quests upon which players will embark in Chapter 2 Season 7 Week 4. The Doomsday Prepper's Guide is very apropos given the season's focus on alien invasion — a classic doomsday situation. Here's how to find the guide for yourself and check this challenge off your to-do list.
Where to Collect the Doomsday Prepper's Guide in Fortnite
The Doomsday Prepper's Guide is a fairly normal-looking blue journal with a pencil attached to it and a Fortnite llama drawn on the cover. It can be hard to see because of its small size, and without knowing where to look it can be a downright pain to discover it for oneself.
To find the Doomsday Prepper's Guide, you'll need to head to the Hydro 16 water treatment facility just west of the lake, between Slurpy Swamp and Misty Meadows. If you know where the dam is, you'll be able to find the facility.
Head into the ground floor of the building and make your way to its northeast corner. You're looking for a desk with a computer, a lit lamp, some boxes and a filing cabinet. When you find the office, walk over to the desk and look on the floor just beside its chair. You'll see the Doomsday Prepper's Guide on the floor between the chair and a filing cabinet.
Interact with the journal and you'll complete the challenge.