Expedition Logbooks are a crucial component of the Expedition endgame mechanic in Path of Exile 2, serving as the gateway to one of the pinnacle encounters: Olroth, Origin of the Fall. These rare items are key to both maximizing your Expedition rewards and earning valuable Atlas passive points tied to the Expedition mechanic.

Here's everything you need to know about acquiring, farming, and using Expedition Logbooks effectively in PoE 2.

What Are Expedition Logbooks?

Expedition Logbooks are rare map-like items used to initiate large-scale Expedition encounters, offering players a chance to battle massive waves of Runic Monsters, gather lucrative Artifacts, and challenge the Expedition pinnacle boss, Olroth. These maps are far larger and more lucrative than standard Expeditions, providing more Detonators (up to 20) and yielding far greater loot if properly executed.

How to Get Expedition Logbooks

Logbooks don't drop from just any monster. They are a rare drop from Runic Monsters in Expedition encounters, which spawn when you detonate near red flagpoles. Here are the key methods and mechanics behind farming them:

1. Prioritize Red Flagpoles in Expeditions

·Red poles spawn Runic Monsters-the only source of Logbooks.

·Black banners (Excavated Chests) are better for farming Artifacts or Path of Exile 2 Currency, but they don't drop Logbooks.

·Remnants boost difficulty and loot drops, affecting all connected spawns, so prioritize Remnants that increase monster rarity or quantity when targeting red poles.

2. Use High-Tier Waystones

·Logbooks inherit the Area Level of the Expedition map they drop in.

·For endgame and boss attempts, always aim for Level 79+ Logbooks.

Use Tier 15 Waystones or lower-tier ones modified by global modifiers:

·Corrupted: +1 Area Level

·Irradiated: +2 Area Level

3. Expedition Precursor Tablets

·These items passively enhance all Expedition encounters from Towers.

Look for ones with modifiers such as:

·"(5-10)% increased Quantity of Expedition Logbooks dropped by Runic Monsters in your Maps"

·For the best effect, place Precursor Tablets in Towers that overlap, so their bonuses stack multiplicatively in the overlapping regions.

4. Atlas Passive: Detailed Records

In the Expedition section of the Atlas Tree, Detailed Records is a must-have.

·Grants +30% increased Quantity of Logbooks from Runic Monsters.

·All Logbooks found also come with 3 implicit modifiers, increasing their value.

5. Trade for Logbooks

·If RNG isn't on your side, buying Logbooks from other players is viable.

·Use a third-party Poe 2 trade site or in-game trade boards to find high-tier Logbooks, especially Level 79+ for Olroth attempts.

Using Expedition Logbooks

Once you've secured a Logbook, the process for using it is as follows:

Step 1: Speak to Dannig in Your Hideout

·Dannig appears after your first Expedition.

·Choose "Show Expeditions Map" when interacting with him.

Step 2: Place the Logbook

·Insert the Logbook into the map slot.

·This opens up a massive Expedition area with 20 Detonators and high Runic Monster density.

·Plan your Detonator placements carefully, prioritizing red poles and overlapping Remnants.

Step 3: Loot and Fight

·Carefully detonate in a path that hits the highest concentration of Runic Monsters.

·Remember: Only Runic Monsters drop Logbooks.

·Use a good loot filter to spot Logbooks immediately.

Fighting Olroth, Origin of the Fall

Olroth is the Expedition pinnacle boss and appears randomly in Level 79+ Logbooks. His icon-a silver skull-will appear on the Expedition map if he is present.

To Fight Olroth:

·Use a Level 79+ Logbook.

·Unlock Boss Level +1 modifiers in the Atlas to increase the chance of a higher-tier Olroth encounter.

You must defeat him at:

·Level 79

·Level 80

·Level 81

·Level 82

Each defeat at these levels grants 2 Expedition Atlas points, for a total of 8 points.

Note: Encountering Olroth in a lower-level Logbook or without proper modifiers will not grant any Atlas points-even if you defeat him.

Tips for Efficient Logbook Farming

·Overlap Buffs: Stack Expedition Precursor Tablets in overlapping Towers for multiplicative gains.

·Atlas Investment: Max out Expedition passives-especially Detailed Records and Additional Explosives.

·Ignore Boss Spawns: Olroth does not drop Logbooks; only regular Runic Monsters do.

·Logbook Filtering: Use a custom loot filter to highlight Logbooks with audio/visual cues.

Conclusion

Expedition Logbooks are essential for pushing Expedition endgame content in Path of Exile 2. Whether you're aiming to farm Artifacts, chase Unique drops, or complete your Atlas passives by defeating Olroth, understanding how to farm and use Logbooks efficiently will give you a serious edge.

Make sure to focus your detonations wisely, optimize your Atlas Tree, and take advantage of Precursor Tablet stacking-and the riches of the Expedition league will be yours.