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Throne and Liberty (TL)
How to Farm Rare Passive Skill Growth Books
As of March 2025, Game8 has ended coverage of Throne and Liberty.
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Rare Passive Skill Growth Books are Growth Materials used to upgrade your Passive skills in Throne and Liberty (TL). Read on to learn how to farm and craft Rare Passive Skill Growth Books, as well as how to use them to upgrade your skills.
List of Contents
How to Farm Rare Passive Skill Growth Books
Reward for Completing Codex Quests
Rare Passive Skill Growth Book is a reward you can get from the following Codex Quests in Throne and Liberty:
| Quest | Type and Rewards |
|---|---|
| Mystic Globes and Mystic Portals (Appendix) |
Type: Adventure Quest Rewards : ・Mystic Key x5 ・Rare Passive Skill Growth Book x15 |
| The Abyssal Contract (Appendix) |
Type: Adventure Quest Rewards : ・Rare Active Skill Growth Book x25 ・Rare Passive Skill Growth Book x20 |
| The Terrific Trio's Pledge |
Type: Adventure Quest Rewards : ・Rare Active Skill Growth Book x15 ・Rare Passive Skill Growth Book x8 ・Title - Beloved Comrade |
| Dimensional Circle: Roaring Temple (Appendix) |
Type: Adventure Quest Rewards : ・Rare Active Skill Growth Book x2 ・Rare Passive Skill Growth Book x3 |
| Dimensional Circle: Cave of Desperation (Appendix) |
Type: Adventure Quest Rewards : ・Rare Active Skill Growth Book x4 ・Rare Passive Skill Growth Book x5 |
| Night at the Clinic |
Type: Adventure Quest Rewards : ・Rare Active Skill Growth Book x25 ・Rare Passive Skill Growth Book x15 |
| Ezekiel and Leonardas |
Type: Adventure Quest Rewards : ・Rare Active Skill Growth Book x35 ・Rare Passive Skill Growth Book x27 |
| Find Golem's Heart Fragment 2 |
Type: Adventure Quest Rewards : ・Rare Active Skill Growth Book x35 ・Rare Passive Skill Growth Book x20 |
| Contents of the Old Bag |
Type: Adventure Quest Rewards : ・Rare Active Skill Growth Book x45 ・Rare Passive Skill Growth Book x35 |
| Sand for Engraving Magic Schema |
Type: Adventure Quest Rewards : ・Rare Active Skill Growth Book x35 ・Rare Passive Skill Growth Book x25 |
| Miracle in the Sandstorm |
Type: Adventure Quest Rewards : ・Rare Active Skill Growth Book x35 ・Rare Passive Skill Growth Book x20 ・Title - Desert Challenger |
| Marcia's Picture (Appendix) |
Type: Adventure Quest Rewards : ・Rare Active Skill Growth Book x30 ・Rare Passive Skill Growth Book x25 |
| Lukas's Identity |
Type: Adventure Quest Rewards : ・Rare Passive Skill Growth Book x35 |
| Ollis's Request |
Type: Adventure Quest Rewards : ・Rare Active Skill Growth Book x75 ・Rare Passive Skill Growth Book x75 |
| Find Benny |
Type: Adventure Quest Rewards : ・Rare Passive Skill Growth Book x6 |
| Conspiracy Revealed |
Type: Adventure Quest Rewards : ・Rare Active Skill Growth Book x8 ・Rare Passive Skill Growth Book x6 |
| Harden's Tracks |
Type: Adventure Quest Rewards : ・Rare Active Skill Growth Book x4 ・Rare Passive Skill Growth Book x4 |
| Chapter 3: Veterans Never Die |
Type: Main Quest Rewards : ・Rare Passive Skill Growth Book x15 |
| Clay's Magic Communication Device |
Type: Adventure Quest Rewards : ・Rare Active Skill Growth Book x8 ・Rare Passive Skill Growth Book x8 |
| For the Ally's Rests |
Type: Exploration Quest Rewards : ・Rare Polished Crystal x7 ・Rare Weapon Growthstone x3 ・Rare Magic Powder x4 ・Rare Accessory Growthstone x4 ・Rare Passive Skill Growth Book x3 ・Sea Crab (Morphstone) |
| For Whom the Bell Tolls |
Type: Exploration Quest Rewards : ・Rare Magic Powder x2 ・Rare Polished Crystal x1 ・Rare Base Material Selection Chest x2 ・Rare Passive Skill Growth Book x2 ・Rare Active Skill Growth Book x1 ・Shade Revenant Stheno Morphstone |
| Abyss Entrance |
Type: Exploration Quest Rewards : ・50 Abyssal Contract Token Points x2 ・Recovery Crystal x10 ・Rare Active Skill Growth Book x1 ・Rare Passive Skill Growth Book x1 |
| Sands that Make Money |
Type: Exploration Quest Rewards : ・Recovery Crystal x9 ・Rare Passive Skill Growth Book x2 ・Quality Accessory Growthstone x8 |
| Monster Researcher's Requests |
Type: Exploration Quest Rewards : ・Recovery Crystal x10 ・Quality Accessory Growthstone x6 ・Rare Base Material Selection Chest x5 ・Rare Passive Skill Growth Book x3 |
| Specter's Abyss |
Type: Region Quest Rewards : ・Rare Active Skill Growth Book x5 ・Rare Passive Skill Growth Book x5 |
| Traces of the Missing |
Type: Exploration Quest Rewards : ・Quality Stellarite x200 ・Rare Active Skill Growth Book x2 ・ Rare Passive Skill Growth Book x1 |
| Intimidating Breath |
Type: Exploration Quest Rewards : ・Quality Accessory Growthstone x9 ・Rare Passive Skill Growth Book x1 |
| Elemental Tree Harvest: Manawastes |
Type: Exploration Quest Rewards : ・Rare Magic Powder x2 ・Sand Basilisk Morphstone ・Rare Passive Skill Growth Book x4 |
| Cowardly Apprentice Wizard |
Type: Exploration Quest Rewards : ・Rare Active Skill Growth Book x3 ・Temitran Morphstone ・Rare Passive Skill Growth Book x4 |
| The Village Protecting Tree |
Type: Exploration Quest Rewards : ・Quality Recovery Crystal x10 ・Rare Active Skill Growth Book x5 ・Rare Passive Skill Growth Book x5 ・Rare Polished Crystal x7 ・Title - Miracle Maker |
| Kobi's Kotoris, Quillix Research |
Type: Exploration Quest Rewards : ・Rare Magic Powder x6 ・Rare Base Material Selection Chest x2 ・Rare Active Skill Growth x2 ・Rare Passive Skill Growth x4 ・Rare Polished Crystal x3 |
| Solisium's Lighthouse |
Type: Exploration Quest Rewards : ・Rare Magic Powder x5 ・Rare Base Material Selection Chest x3 ・Rare Active Skill Growth Book x2 ・Rare Passive Skill Growth Book x3 ・Title - Tower Repair |
| Fonos Basin Treasure |
Type: Exploration Quest Rewards : ・Quality Recovery Crystal x10 ・Rare Passive Skill Growth Book x5 ・Precious Magic Powder x2 ・Precious Weapon Growthstone x1 |
| Stop the Festival of Fire |
Type: Exploration Quest Rewards : ・Rare Polished Crystal x5 ・Rare Passive Skill Growth Book x5 ・Precious Accessory Growthstone x2 |
| Army of the Dead |
Type: Exploration Quest Rewards : ・50 Abyss Contract Token Points x10 ・Quality Recovery Crystal x10 ・Rare Active Skill Growth Book x4 ・Rare Passive Skill Growth Book x4 |
| Escape the Abyss |
Type: Exploration Quest Rewards : ・Quality Stellarite x100 ・Rare Active Skill Growth Book x4 ・Rare Passive Skill Growth Book x4 |
| Dark Researchers |
Type: Exploration Quest Rewards : ・50 Abyssal Contract Token Points x2 ・Rare Active Skill Growth Book x2 ・Rare Passive Skill Growth Book x2 |
| Evidence of Corruption |
Type: Exploration Quest Rewards : ・Rare Active Skill Growth Book x4 ・Rare Passive Skill Growth Book x2 |
| Beginning of Misfortune |
Type: Exploration Quest Rewards : ・50 Abyssal Contract Token Points x2 ・Rare Active Skill Growth Book x3 ・Rare Passive Skill Growth Book x3 |
| Mutant Ant Counterattack |
Type: Exploration Quest Rewards : ・Rare Active Skill Growth Book x3 ・Rare Passive Skill Growth Book x5 |
| Crossroad of Fire and Poison |
Type: Exploration Quest Rewards : ・ |
| Specter's Punishment |
Type: Exploration Quest Rewards : ・ |
| Temple of Madness |
Type: Exploration Quest Rewards : ・ |
| Forbidden Experiment |
Type: Exploration Quest Rewards : ・ |
| End of the Cave |
Type: Exploration Quest Rewards : ・ |
| Life in the Herd |
Type: Exploration Quest Rewards : ・ |
| Song of Despair |
Type: Exploration Quest Rewards : ・ |
How to Craft Rare Passive Skill Growth Books
Crafted via the Skills Researcher NPC
| Crafting Recipe 1 |
|---|
|
【Pick 1 From the List】  Rare Marind x1 |
| Crafting Recipe 2 |
Rare Passive Skill Growth Book can be crafted by the Skills Researcher NPC at any of Solisium's major cities. However, do note that Epic rarity growth materials can only be crafted by Senior Skills Researcher NPCs like the one found in Stonegard Castle.
How to Use Rare Passive Skill Growth Books
Used to Upgrade Your Passive Skills from Rare to Epic Quality
Rare Passive Skill Growth Books are used to upgrade your Passive Skills from Rare to Epic Quality via the Enchant Skills menu. Each level you go up, you will need to spend an increasing amount of Rare Passive Skill Growth Books as shown in the table below:
| Levels | Cost to Upgrade |
|---|---|
| Lvl. 1 Rare ▶ Lvl. 2 Rare |  1 Growth Book |
| Lvl. 2 Rare ▶ Lvl. 3 Rare | 2 Growth Books |
| Lvl. 3 Rare ▶ Lvl. 4 Rare | 3 Growth Books |
| Lvl. 4 Rare ▶ Lvl. 5 Rare | 4 Growth Books |
| Lvl. 5 Rare ▶ Lvl. 1 Epic | 5 Growth Books |
Note: The amount of growth EXP you get will be based on the Skill Growth Rate values shown in the Enchant Skills screen. For consecutive low rolls, expect to spend at least 4 times the amount shown in the table above.
Rare Passive Skill Growth Book Overview
Basic Information
| Item Overview | |
|---|---|
 Rare Passive Skill Growth Book
|
|
| Type | Growth Material |
| Sub-Type | Skill Growth Book |
| Rarity | Rare |
| Can be Dissolved? | Yes |
| Description | |
| Rare Passive Skill Growth Book. Used for Passive Skill growth of all weapons. | |
Name in Other Languages
| Japanese (スロリバ) |
希少なパッシブスキル成長書 |
|---|
Throne and Liberty (TL) Related Guides
All Skill Growth Books
| Skill Book Farming Guides | ||
|---|---|---|
 Quality Active Skill Growth Book |
 Quality Passive Skill Growth Book |
Rare Active Skill Growth Book |
| Rare Passive Skill Growth Book |
 Precious Active Skill Growth Book |
 Precious Passive Skill Growth Book |
 Precious Skill Growth Book: Omnipotence |
||
All Equipment Growthstones
Author
Throne and Liberty: Wilds of Talandre Walkthrough & Guides Wiki
How to Farm Rare Passive Skill Growth Books
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