My friend sent a screenshot where he has 14 spells available to use, however everything I've reaearched shows that 12 is the maximum for a spellbook. We don't have the unobtanium book, or any other addons that would increase the cal. He also refuses to share how he got this much spells. Can anyone help please?

Modlist - NeoForge 1.21.1

Advanced Peripherals 0.7.61b

Almanac 1.5.2

Apothic Attributes 2.9.1

Aquaculture 2 2.7.21

Brewin And Chewin 4.4.2

Chunky 1.4.23

Clumps 19.0.0.1

Cobblemon 1.7.3

Create Dragons Plus 1.10.0b

Farmer's Delight 1.3.2

Farmer's Structures 1.0.2

Ice and Fire CE 2.0-beta.16

Incendium 5.4.4

Jade 15.10.5

Just Enough Resources 1.6.0.17

My Nether's Delight 1.10.2

Nullscape 1.2.14

Placebo 9.9.1

Quark 4.1-479

Terralith 2.5.8

Traveler's Titles 5.1.3

YUNG's API 5.1.6

YUNG's Better Dungeons 5.1.4

Zeta 1.1-40

Alex's Delight 1.6

Alex's Mobs 1.22.17

Amplified Nether Height 1.2

Ancient Structures 0.1.1

AppleSkin 3.0.9

Aquaculture Delight 1.2.0

Architectury API 13.0.8

Armor of the Ages 1.5.9

Artifacts 13.2.1

Astikor Carts Redux 1.2.2

Athena 4.0.6

Atlas API 1.2.0

Baguette Lib 2.0.3

Balm 21.0.56

Better Village 3.3.1

BlueMap 5.7

Carry On 2.2.4.4

CC: Tweaked 1.118.0

CC: C-Bridge 1.7.2

Chipped 4.0.2

Citadel 2.7.6

Cloth Config API 15.0.140

Cobblemon Exp All 0.0.1

Connector 2.0.0-beta.14

Copycats+ 3.0.4

Corpse 1.1.13

Corpse Curios Compat 4.0.1

Craftable Saddles 1.1

Create 6.0.10

Create Aeronautics 1.2.1

Create: Central Kitchen 2.4.0

Create: Enchantment Industry 2.3.1

Create Stuff & Additions 2.1.2

Create: Connected 1.1.16

Create Easy Structures 0.2a

Create Mechanical Extruder 2.2.0

Create Radar 0.4.9.2

Create Sophisticated Backpack Compat 1.0

Create Aeronautics Curios 1.0

Create Big Cannons 5.11.3

Create Deco 2.1.3

Create Diesel Generators 1.3.12

Create Ender Transmission 2.1.1

Create Goggles 6.1.1

Create Propulsion 1.1.4

Cristellib 3.0.3

Cultural Delights 0.17.8

Curios API 9.5.1

Dawn of Time Builder 1.6.6

Deeper and Darker 1.4

Domum Ornamentum 1.0.233

Drive By Wire 0.2.9

Drive By Wire Typewriter 1.0.2

Ender's Delight 1.3.0

End's Delight 2.5.1

Epic Knights 10.12

FerriteCore 7.0.3

Forgified Fabric API 0.116.7

Functional Storage 1.5.5

GeckoLib 4.8.4

IDAS 1.13.5

Integrated API 1.7.4

Irons Lib 1.0.2

Iron's Spellbooks 3.15.6

Iron's Jewelry (Barrett Patch v1)

JEI 19.27.0.340

Jupiter 2.3.7

Kotlin for Forge 5.11.0

Krypton 0.2.14

Let Me Despawn 1.5.0

LibraryFerret 4.0.0

Lithium 0.15.3

Lithostitched 1.7.3

Lootr 1.11.37.120

Mechanicals 1.1.0

MidnightLib 1.9.3

MineColonies 1.1.1319

ModernFix 5.27.7

Moonlight 3.0.14

Multi Piston 1.2.58

Noisium 2.7.0

Ocean's Delight 1.0.4

Paladin's Furniture 1.4.4

Player Animation Lib 2.0.4

Power Grid 0.5.5.1

Steam 'n' Rails 0.2.0-beta.2

Resourceful Lib 3.0.12

Ritchies Projectile Lib 2.1.2

Sable 1.2.2

ServerCore 1.5.10

Skin Restorer 2.7.0

Slice & Dice 4.2.4

Sophisticated Backpacks 3.25.44

Sophisticated Core 1.4.38

Storage Delight 26.04.18a

Structurize 1.0.830

Style Colonies 1.15.54

Supplementaries 3.6.5

Trains & Travels 1.13.7

TFMG 1.2.0

Titanium 4.0.43

Town Talk 1.2.0

Trade Cycling 1.0.18

Twilight Delight 3.2.1

The Twilight Forest 4.8.3345

Uranus 2.4.1

Vista 4.4.8

Simple Voice Chat 2.6.17

Waystones 21.1.32

Xaero's Minimap 25.3.13

Xaero's World Map 1.40.16

Yet Another Config Lib 3.8.2

ApothicAttributes 2.9.1

Atlas API 1.2.0

LibraryFerret 4.0.0

[Iron's Spells and Spellbooks 1.21.1] Extra spells beyond 12 spell cap.