If you’ve spent any amount of time roaming the war-torn zones of The First Descendants, you’ve probably stumbled across vague references to a mysterious written item, or even found fragments of it scattered in hidden chests across Vespers. New players and veteran grinders alike often ask what is the First Descendants book, and if it’s just a throwaway lore collectible or something that gives you a tangible edge in combat. I’ve spent over 120 hours hunting down every piece of it across multiple playthroughs, so I’m breaking down everything you need to know, from its narrative weight to the secret bonuses you get for assembling the full copy. You don’t have to grind for dozens of hours to get value out of it, either, even casual players can benefit from tracking down a few fragments as they play through the main campaign.
What is the First Descendants Book, Exactly?
At its core, the First Descendants book is a handwritten journal penned by Kahn, the very first Inheritor who gained Void powers after the initial alien invasion of Earth. It’s not a single bound item you find in one run, either – you have to collect 12 scattered fragments across all 5 regions of the game world to assemble the full copy. Each fragment you pick up comes with a short, dated entry from Kahn’s time leading the first resistance against the Void invaders, filling in huge gaps in the game’s main story that aren’t covered in cutscenes or character dialogue. A lot of players write off the fragments as useless collectibles when they first find them, but that’s a huge mistake if you care about either the game’s lore or small but meaningful gameplay buffs. I skipped collecting them for my first 30 hours of play, and I didn’t realize how much context I was missing for the main campaign’s biggest plot twists until I went back to hunt them down. You’ll find the first fragment automatically if you complete the opening tutorial, so most players already have at least one piece of the book sitting in their collection without even realizing it. Fragments are also account-bound, so if you collect one on your main Descendant, it’s available for all your alternate characters too, so you don’t have to re-collect them if you decide to main a different character later.
Key Lore Reveals Hidden in the Full Book
Once you assemble all 12 fragments, you can read the full book from your in-game collection tab at any time, and the reveals inside completely change how you see many of the game’s core characters and conflicts. Some of the biggest reveals I didn’t see coming include:
- The real reason Kahn abandoned the original resistance: He didn’t betray his team, as the official in-game lore claims, but left to find a way to reverse the Void corruption that was slowly killing him and other early Inheritors.
- How modern Descendants get their powers: The core technology used to bind Void powers to human hosts was developed by Kahn himself, not the corporate entity that now runs the Descendant program.
- The secret ending tease: The final entry hints at a hidden survivor colony on the other side of the Void rift that will almost certainly be the focus of future story updates.
Gameplay Bonuses You Get for Assembling the Book
Lore isn’t the only reward you get for putting the full book together, either. The game gives you a permanent, account-wide buff as soon as you unlock the full copy, which works for every Descendant you play, not just the one you used to collect the fragments. The buff gives you a 5% increase to Void energy drop rates across all game modes, plus a 3% damage boost against all mid-boss and end-boss enemies. Those percentages might seem small at first glance, but they add up fast, especially if you grind endgame raids and Void rifts for rare crafting materials. I noticed the difference immediately after I unlocked the buff: I was getting 2-3 extra Void energy drops per rift run, which cut down the time I needed to craft my first legendary weapon by almost 8 hours total. A lot of players ask if the buff stacks with other event buffs, and I can confirm from my own testing that it does. During the last Void surge event, I had a 20% event Void drop buff active, plus the 5% from the book, and I was getting almost double the normal drops per run, which let me craft two legendary modules in half the time I normally would. There’s also a secret side quest that unlocks only after you read the final entry of the book, which rewards you with a unique, untradeable back accessory for your character that has its own small stat boost. You won’t find that quest anywhere else, even if you’ve 100% completed all other main and side content in the game. If you’re still on the fence about putting in the work to track down every piece of the First Descendants book, that permanent buff alone should be enough to convince you.
How to Find All Book Fragments Fast (No Spoilers)
You don’t have to wander aimlessly looking for fragments if you don’t want to. I’ve tested a bunch of different hunting routes, and there are a few simple rules that make the process way faster than random exploration. First, fragments only spawn in hidden golden chests, not regular white or blue chests, so you can skip all common chests if you’re just hunting for book pieces. Golden chests only appear after you clear all enemy units in a marked hidden outpost, so prioritize those outposts when you’re exploring a region. Second, fragments are region-locked: 3 fragments spawn in each of the first 4 regions, and the final 3 spawn in the endgame Void rift zone, so you don’t have to re-run old regions multiple times looking for missing pieces. I made the mistake of re-running the first region 4 times before I realized I was missing fragments that only spawn in the endgame zone, so don’t waste your time like I did. You also don’t have to collect fragments in order, and you can pick up duplicate fragments in co-op runs with friends if they have a fragment you’re missing – as long as you’re the one who opens the chest, the game will count it for your collection even if you’re joining their session. If you’re playing co-op, make sure you communicate with your team about who needs which fragment, so you don’t end up opening chests for people who don’t need the drop. You don’t need any special items or unlocks to start collecting pieces of the First Descendants book, either – you can start hunting for fragments as soon as you finish the tutorial and gain access to the first open world region. The in-game collectible tracker will also show you which fragments you’re missing for each region, so you don’t have to keep a physical list or memorize which ones you already have.
At the end of the day, what is the First Descendants book? It’s both a love letter to long-time players who want to dig deeper into the game’s rich lore, and a small but meaningful reward for players who take the time to explore off the beaten path. You don’t have to collect it to enjoy the game, but if you’re planning to spend dozens of hours grinding endgame content or just love learning the backstory of your favorite characters, it’s 100% worth the time to track down every fragment. Even if you only care about gameplay perks, that permanent Void energy boost will pay for itself many times over the course of your playtime. I’ve recommended this collectible hunt to almost every new player I’ve played co-op with, and not a single one has told me they regretted putting in the work to finish the book.