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The Great Gubal Library

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Dungeon.png

The Great Gubal Library

The Great Gubal Library.png
Level
59 (Sync: 60)
iLevel
120 (Sync: 150)
Difficulty
Normal
Party size
Light Party
4man 1 Tank role.png 1 Healer role.png 2 DPS role.png
Time limit
90min
Roulette
Leveling
Req. quest
Main Scenario quest Forbidden Knowledge
Entrance
The Dravanian Hinterlands (X:28, Y:37)
Patch
3.0

Built by the learned men and women of Sharlayan, the Great Gubal Library is the grandest repository of knowledge in all of Eorzea. Lining its towering shelves are tomes beyond count, gathered from the farthest reaches of the realm. Like the city-state, however, the library was abandoned by its caretakers when they fled to their motherland in the face of Garlean invasion. And now, fifteen years since its doors were sealed, you will be the first soul to set foot within its halls. Your destination is the forbidden section deep within the library, where lies your objective: the fruits of Matoya's research on the aetheric converger.

— In-game description

The Great Gubal Library is a level 59 dungeon introduced in patch 3.0 with Heavensward.

Unlock

Level 59+ players need to start the level 59 Main Scenario Quest Main Scenario QuestForbidden Knowledge. Players can start the quest by talking to Matoya in Matoya's Cave (x6, y5). To unlock the quest, players need to complete the level 59 Main Scenario Quest Main Scenario QuestMatoya's Cave (Quest).

Objectives

  1. Defeat the demon tome
  2. Defeat Byblos
  3. Defeat the Everliving Bibliotaph

Bosses

The Great Gubal Library Guide

Aggressive difficulty r6.png The Demon Tome

The Demon Tome is similar to the Demon Wall in Amdapor Keep, with a few added skills, but doesn't advance.

  • Like the Demon Wall, the Demon Tome will cast an AOE down the middle of the room, then the sides. If this hits you, it will have a slowing effect, making it harder to get past him for Disclosure.
  • As he is between casting the two previous attacks, the Demon Tome will also cast Dark Blizzard III, a circle AOE that will target a random player.
  • The Demon Tome will occasionally cast Disclosure and "begin to glow." This signals that you need to run along the sides of the arena to the backs-side of the Tome. Anyone on the wrong side of it when it closes will be killed instantly.
  • The Demon Tome will cast Words of Winter after a while, an attack similar to Shiva's ground freeze - when the ground is frozen, you will move a certain length in the direction you attempt to go. Unlike Shiva, this is not all the way to the edge of the arena; it is a matter of several yalms. At that point it will always be active when it casts Disclosure.

Take note that the fence is not present to the immediate left and right of the book, but you cannot fall off the ledge despite this. The easiest way to get past him when frozen, for PC players, is to press Q or E while directly facing the boss (assuming you haven't remapped those keys) so that you slide into the fence, then W twice so that you slide forward and past him. Alternately, holding right-click and pressing A or D will accomplish the same thing. While I haven't attempted the boss with a controller on PC, just tapping left or right once, and then forward twice, 'should' get the job done as well.

Aggressive difficulty r6.png Byblos

Byblos is a book demon, and the second boss of The Great Gubal Library.

  • At intervals, Byblos will run to the center of the book that summoned him and become invincible. Shortly after, two books will spawn with adds in them. They will fire Death Ray, a low damage line AoE that extends pretty far. Kill the adds quickly. When they die, they will draw a tether between them and a given player (like the ice, fire, and lightning orbs in the Scylla encounter in Labyrinth of the Ancients). Draw this orb into Byblos to break his invulnerability.
  • After one invulnerability phase, Byblos will begin spawning clouds of oil fumes around the room. These will cause 2k damage and a pushback when you run through them, so take them in turns, carefully, to keep them from stacking up. The clouds will break the orbs from the invulnerability phase if they collide, requiring your party to deal with another set of adds.
  • Performs Gale Cut fairly regularly, a frontal attack that deals mild damage to tanks. This has no ground warning, and can be avoided by either running through or to the side. It has a cast time of around 2.5-3 seconds.
  • Performs Tail Swipe when someone is behind him, a rear-facing conal attack. This seems to only happen if someone is behind him.
  • Performs Head Down on a random party member, which is a fairly damaging charge attack/sort-of stun. This cannot be avoided regardless of any attempt to move away from it and it will hit all party members in its path. If he targets you, try not to line yourself up with your party, or run forward to minimize the area he will affect.

Aggressive difficulty r6.png The Everliving Bibliotaph

The Everliving Bibliotaph has a few ground-pattern AOE attacks in addition to:

  • At 3 intervals throughout the fight (roughly 85%, 55%, and 25% HP), Bibliotaph will begin casting Void Summon. Platforms on the ground will light up, and they will need a certain number of players to stand on them in order to cancel their summon. When one light on the platform is lit up, only one player is needed to stand on it to cancel the summon. When two lights on the platform are lit, two players must stand on it. When three lights are lit, the platform needs three players. Before this fight, figure out who will go with who for the first two phases, and plan to run all together for the final (three-person) phase. If a platform's summon is not canceled, that platform will summon a voidsent add to the boss fight.

Note: All six platforms will light up the first time (for one player each), four will light the second time (two players each), and only two will light the third time (three players each). You seem to have around ten seconds to cancel all the summons (need confirmation) before the add is spawned.

  • At intervals, Bibliotaph will mark players with targets. If you are targeted, run to one side of the arena between platforms to bait the AOE he will place on you.
    • This sets down a purple void spark (a stationary ball) which will remain in place for a duration, periodically pulsing to inflict a stack of vulnerability on those in the area. Be sure to avoid this at all costs.
  • After the 2nd Void Summon at roughly 55% HP, he will begin casting Deep Darkness which covers the entire outside of the arena, immediately followed by Magic Burst (occasionally he will cast Magic Burst first), which covers the inside of the arena. Deep Darkness hits tanks for around 3k and causes a 25-30 second Heavy debuff. Magic Burst deals damage and a knockback.

Loot

Silver Coffer (small).png The Demon Tome

Name Type Rarity Quantity
Sharlayan conservators bangle icon1.png  Sharlayan Conservator's Bangle Bracelets BDungeon 1
Sharlayan conservators boots icon1.png  Sharlayan Conservator's Boots Feet BDungeon 1
Sharlayan conservators ring icon1.png  Sharlayan Conservator's Ring Ring BDungeon 1
Sharlayan custodians bangle icon1.png  Sharlayan Custodian's Bangle Bracelets BDungeon 1
Sharlayan custodians boots icon1.png  Sharlayan Custodian's Boots Feet BDungeon 1
Sharlayan custodians ring icon1.png  Sharlayan Custodian's Ring Ring BDungeon 1
Sharlayan emissarys boots icon1.png  Sharlayan Emissary's Boots Feet BDungeon 1
Sharlayan pankratiasts bangle icon1.png  Sharlayan Pankratiast's Bangle Bracelets BDungeon 1
Sharlayan pankratiasts boots icon1.png  Sharlayan Pankratiast's Boots Feet BDungeon 1
Sharlayan pankratiasts ring icon1.png  Sharlayan Pankratiast's Ring Ring BDungeon 1
Sharlayan pathmakers boots icon1.png  Sharlayan Pathmaker's Boots Feet BDungeon 1
Sharlayan philosophers bangle icon1.png  Sharlayan Philosopher's Bangle Bracelets BDungeon 1
Sharlayan philosophers boots icon1.png  Sharlayan Philosopher's Boots Feet BDungeon 1
Sharlayan philosophers ring icon1.png  Sharlayan Philosopher's Ring Ring BDungeon 1
Sharlayan preceptors bangle icon1.png  Sharlayan Preceptor's Bangle Bracelets BDungeon 1
Sharlayan preceptors boots icon1.png  Sharlayan Preceptor's Boots Feet BDungeon 1
Sharlayan preceptors ring icon1.png  Sharlayan Preceptor's Ring Ring BDungeon 1

Silver Coffer (small).png Byblos

Name Type Rarity Quantity
Sharlayan conservators choker icon1.png  Sharlayan Conservator's Choker Necklace BDungeon 1
Sharlayan conservators earrings icon1.png  Sharlayan Conservator's Earrings Earrings BDungeon 1
Sharlayan conservators gloves icon1.png  Sharlayan Conservator's Gloves Hands BDungeon 1
Sharlayan conservators hat icon1.png  Sharlayan Conservator's Hat Head BDungeon 1
Sharlayan custodians choker icon1.png  Sharlayan Custodian's Choker Necklace BDungeon 1
Sharlayan custodians earrings icon1.png  Sharlayan Custodian's Earrings Earrings BDungeon 1
Sharlayan custodians gloves icon1.png  Sharlayan Custodian's Gloves Hands BDungeon 1
Sharlayan custodians helm icon1.png  Sharlayan Custodian's Helm Head BDungeon 1
Sharlayan emissarys cap icon1.png  Sharlayan Emissary's Cap Head BDungeon 1
Sharlayan emissarys gloves icon1.png  Sharlayan Emissary's Gloves Hands BDungeon 1
Sharlayan pankratiasts cap icon1.png  Sharlayan Pankratiast's Cap Head BDungeon 1
Sharlayan pankratiasts choker icon1.png  Sharlayan Pankratiast's Choker Necklace BDungeon 1
Sharlayan pankratiasts earrings icon1.png  Sharlayan Pankratiast's Earrings Earrings BDungeon 1
Sharlayan pankratiasts gloves icon1.png  Sharlayan Pankratiast's Gloves Hands BDungeon 1
Sharlayan pathmakers gloves icon1.png  Sharlayan Pathmaker's Gloves Hands BDungeon 1
Sharlayan pathmakers helm icon1.png  Sharlayan Pathmaker's Helm Head BDungeon 1
Sharlayan philosophers choker icon1.png  Sharlayan Philosopher's Choker Necklace BDungeon 1
Sharlayan philosophers earrings icon1.png  Sharlayan Philosopher's Earrings Earrings BDungeon 1
Sharlayan philosophers gloves icon1.png  Sharlayan Philosopher's Gloves Hands BDungeon 1
Sharlayan philosophers hat icon1.png  Sharlayan Philosopher's Hat Head BDungeon 1
Sharlayan preceptors choker icon1.png  Sharlayan Preceptor's Choker Necklace BDungeon 1
Sharlayan preceptors earrings icon1.png  Sharlayan Preceptor's Earrings Earrings BDungeon 1
Sharlayan preceptors gloves icon1.png  Sharlayan Preceptor's Gloves Hands BDungeon 1
Sharlayan preceptors hat icon1.png  Sharlayan Preceptor's Hat Head BDungeon 1

Gold Coffer (small).png The Everliving Bibliotaph

Name Type Rarity Quantity
Belahdian anelace icon1.png  Belah'dian Anelace Sword BDungeon 1
Belahdian cinquedea icon1.png  Belah'dian Cinquedea Daggers BDungeon 1
Belahdian claymore icon1.png  Belah'dian Claymore Greatsword BDungeon 1
Belahdian degen icon1.png  Belah'dian Degen Rapier BDungeon 1
Triple Triad Card r3.png  Byblos Card   This item is guaranteed to drop. Triple Triad Card 1
Ink long dry orchestrion roll icon1.png  Ink Long Dry Orchestrion Roll   This item is guaranteed to drop. Orchestrion Roll ABasic 1
Kagehide icon1.png  Kagehide Katana BDungeon 1
Lewphons eye icon1.png  Lewphon's Eye Star Globe BDungeon 1
Nymian royal marine battleaxe icon1.png  Nymian Royal Marine Battleaxe Greataxe BDungeon 1
Nymian royal marine codex icon1.png  Nymian Royal Marine Codex Book BDungeon 1
Nymian royal marine grimoire icon1.png  Nymian Royal Marine Grimoire Book BDungeon 1
Old world composite bow icon1.png  Old World Composite Bow Bow BDungeon 1
Old world rod icon1.png  Old World Rod Staff BDungeon 1
Page 63 icon2.png  Page 63 Minion ABasic 1
Pre-imperial garlean revolver icon1.png  Pre-imperial Garlean Revolver Firearms BDungeon 1
Sharlayan conservators coat icon1.png  Sharlayan Conservator's Coat Body BDungeon 1
Sharlayan conservators longkilt icon1.png  Sharlayan Conservator's Longkilt Legs BDungeon 1
Sharlayan custodians coat icon1.png  Sharlayan Custodian's Coat Body BDungeon 1
Sharlayan custodians longkilt icon1.png  Sharlayan Custodian's Longkilt Legs BDungeon 1
Sharlayan emissarys coat icon1.png  Sharlayan Emissary's Coat Body BDungeon 1
Sharlayan emissarys longkilt icon1.png  Sharlayan Emissary's Longkilt Legs BDungeon 1
Sharlayan pankratiasts coat icon1.png  Sharlayan Pankratiast's Coat Body BDungeon 1
Sharlayan pankratiasts longkilt icon1.png  Sharlayan Pankratiast's Longkilt Legs BDungeon 1
Sharlayan pathmakers coat icon1.png  Sharlayan Pathmaker's Coat Body BDungeon 1
Sharlayan pathmakers longkilt icon1.png  Sharlayan Pathmaker's Longkilt Legs BDungeon 1
Sharlayan philosophers coat icon1.png  Sharlayan Philosopher's Coat Body BDungeon 1
Sharlayan philosophers longkilt icon1.png  Sharlayan Philosopher's Longkilt Legs BDungeon 1
Sharlayan preceptors coat icon1.png  Sharlayan Preceptor's Coat Body BDungeon 1
Sharlayan preceptors longkilt icon1.png  Sharlayan Preceptor's Longkilt Legs BDungeon 1
Thavnairian cane icon1.png  Thavnairian Cane Cane BDungeon 1
Thavnairian katars icon1.png  Thavnairian Katars Fist Weapon BDungeon 1
Thavnairian partisan icon1.png  Thavnairian Partisan Polearm BDungeon 1
The southern sun icon1.png  The Southern Sun Shield BDungeon 1

Additional Treasure Coffers

Bronze Coffer (small).png Treasure Coffer 1 (X: 13.2 Y: 10.7)

Any of the Demon Tome's loot, or one of the following:

Name Type Rarity Quantity
Clear prism icon1.png  Clear Prism Other ABasic 1
Coral pink dye icon1.png  Coral Pink Dye Other ABasic 1
Blood red dye icon1.png  Blood Red Dye Other ABasic 1
Celeste green dye icon1.png  Celeste Green Dye Other ABasic 1
Turquoise green dye icon1.png  Turquoise Green Dye Other ABasic 1

Bronze Coffer (small).png Treasure Coffer 2 (X: 12.2 Y: 12.7)

Any of the Byblos' loot, or one of the following:

Name Type Rarity Quantity
Clear prism icon1.png  Clear Prism Other ABasic 1
Coral pink dye icon1.png  Coral Pink Dye Other ABasic 1
Blood red dye icon1.png  Blood Red Dye Other ABasic 1
Celeste green dye icon1.png  Celeste Green Dye Other ABasic 1
Turquoise green dye icon1.png  Turquoise Green Dye Other ABasic 1

Bronze Coffer (small).png Treasure Coffer 3 (X: 16.2 Y: 10.8)

Name Type Rarity Quantity
Clear prism icon1.png  Clear Prism Other ABasic 1
Coral pink dye icon1.png  Coral Pink Dye Other ABasic 1
Blood red dye icon1.png  Blood Red Dye Other ABasic 1
Celeste green dye icon1.png  Celeste Green Dye Other ABasic 1
Turquoise green dye icon1.png  Turquoise Green Dye Other ABasic 1

Bronze Coffer (small).png Treasure Coffer 4 (X: 15.7 Y: 10.2)

Name Type Rarity Quantity
Clear prism icon1.png  Clear Prism Other ABasic 1
Coral pink dye icon1.png  Coral Pink Dye Other ABasic 1
Blood red dye icon1.png  Blood Red Dye Other ABasic 1
Celeste green dye icon1.png  Celeste Green Dye Other ABasic 1
Turquoise green dye icon1.png  Turquoise Green Dye Other ABasic 1

Images

Gear Images

Dungeon Images