NPC
Librarian Skeleton
- Enemy
- The Dungeon
Librarian Skeleton is a Terraria NPC. It spawns in this biome: 
The Dungeon. It drops 6 items: 
Bone, 
Golden Key, 
Tally Counter and 3 more.
Bestiary entry
Rarity:
These Dungeon denizens are the keepers of long lost tomes that contain forbidden magic. Disturbing them will lead to finding out that the pen is indeed mightier than the sword...
- Lives in: The Dungeon
- Its banner:
Librarian Skeleton Banner - Shoots: Book
- Immune to:
Bleeding, 
Confused, Hemorrhage, 
Poisoned
Stats by game mode
| Classic | Expert | Master | Legendary (For the Worthy) | |
|---|---|---|---|---|
| Life | 70 | 140 | 210 | 280 |
| Attack | 18 | 36 | 54 | 96 |
| Defense | 2 | 2 | 2 | 2 |
| Knockback Taken | 60% (Med) | 54% (Med) | 48% (Med) | 48% (Med) |
| Coins |  1 60 | 4 | 4 | 560 |
The last column is Master mode in a world made with the For the Worthy seed. Its numbers were measured in the game, not computed here.
For one player in a world before Hardmode. Expert and Master scale life, attack, knockback and coins by the game's own multipliers.
Coins: each kill rolls the coins from 80% to 175% of this value, then rarer extra rolls can add more.
In a Hardmode world
On Expert and Master, a Hardmode world raises weak enemies: when attack plus defense plus a quarter of life is under 80 (100 after Plantera), the game multiplies them up.
Drops
Classic
| Item | Quantity | Chance | Kills for 50% | Kills for 90% | Conditions |
|---|---|---|---|---|---|
| Bone | 1 to 3 | 197,208/203,125 (97.1%) | 1 | 1 | Rolled only when the roll for Bone Wand (1 in 250) fails. Rolled only when the roll for Tally Counter (1 in 100) fails. Rolled only when the roll for Golden Key (1 in 65) fails |
| Golden Key | 1 | 24,651/1,625,000 (1.52%) | 46 | 151 | Rolled only when the roll for Bone Wand (1 in 250) fails. Rolled only when the roll for Tally Counter (1 in 100) fails |
| Tally Counter | 1 | 249/25,000 (1%) | 70 | 231 | Rolled only when the roll for Bone Wand (1 in 250) fails |
 Bone Wand | 1 | 1/250 (0.4%) | 173 | 575 | |
 Clothier Voodoo Doll | 1 | 1/300 (0.33%) | 208 | 690 | |
 Ancient Necro Helmet | 1 | 1/450 (0.22%) | 312 | 1,036 |
Expert
| Item | Quantity | Chance | Kills for 50% | Kills for 90% | Conditions |
|---|---|---|---|---|---|
| Bone | 2 to 6 | 100% | |||
| Golden Key | 1 | 24,651/1,625,000 (1.52%) | 46 | 151 | Rolled only when the roll for Bone Wand (1 in 250) fails. Rolled only when the roll for Tally Counter (1 in 100) fails |
| Tally Counter | 1 | 249/25,000 (1%) | 70 | 231 | Rolled only when the roll for Bone Wand (1 in 250) fails |
| Bone Wand | 1 | 1/250 (0.4%) | 173 | 575 | |
| Clothier Voodoo Doll | 1 | 1/300 (0.33%) | 208 | 690 | |
| Ancient Necro Helmet | 1 | 1/450 (0.22%) | 312 | 1,036 |
Master
| Item | Quantity | Chance | Kills for 50% | Kills for 90% | Conditions |
|---|---|---|---|---|---|
| Bone | 2 to 6 | 100% | |||
| Golden Key | 1 | 24,651/1,625,000 (1.52%) | 46 | 151 | Rolled only when the roll for Bone Wand (1 in 250) fails. Rolled only when the roll for Tally Counter (1 in 100) fails |
| Tally Counter | 1 | 249/25,000 (1%) | 70 | 231 | Rolled only when the roll for Bone Wand (1 in 250) fails |
| Bone Wand | 1 | 1/250 (0.4%) | 173 | 575 | |
| Clothier Voodoo Doll | 1 | 1/300 (0.33%) | 208 | 690 | |
| Ancient Necro Helmet | 1 | 1/450 (0.22%) | 312 | 1,036 |
Chance is per kill. Kills for 50% and 90% is how many kills give that chance to see the item at least once.
