These stories have 20k+ words.

Disney After Dark

princessofthescoundrels. 2012. 24K.

I Thought I Lost You

SapphireMoonlight24. 2009. 30K.

Just A Year

LightOnAHill. 2007. 26K.

Learning to Dance in the Rain

Rylee87. 2009. 51K.

Night Watch Series: Canopic Chaos, Shadowhaunt, Tablet Thief, The Gates of Hell, To Close a Gate, Last Fight

t.j.guard. 2010. 46K.

OctoberSeries: True Love can Withstand any Barrier and Second Chances

Eris87. 2009. 69K.

Outlaw Series: Outlaw, Fighting for Dawn, Judgment Day

t.j.guard. 2010. 26K.

Tears, Travel, and True Love's Triumph

BookLizard. 2009. 33K.

Things Will Go Bump In the Night and Freaks Come Out At Night

thnksfrthmmrs998. 2009. 23.3K. Incomplete.

Unexpected Love

Persephone89. 2009. 61K.

These stories have 5k+ words.

A Museum Carol

Mythicalnightguard. 2014. 6.3K.

A New Kind of Enemy

AnimeAmie. 2014. 10K. Incomplete.

A New Start

Scooter12345. 2009. 5.7K.

Broken hearts and Sleepless Night

Why Does He Love Me. 2009. 5.8K. Incomplete.

Closer Than Ever

daisyduke80 and LightOnAHill. 2007. 13K.

Crazy Night As A Watchman

Yellowfruit. 2008. 9.6K. Incomplete.

Date with the Devil

t.j.guard. 2010. 8.1K.

Define Dating

XTheAuthoressX. 2009. 6.2K.

Diffrent Circumstances

daisyduke80. 2007. 8.9K.

Family Matters

daisyduke80. 2007. 6.2K.

Felt

Rose DiVerona. 2009. 8.3K.

Five Times Octavius And Jedediah Kissed

MidnightSakuraBlossom and SYD. 2012. 9.2K.

I am my beloved's and my beloved is mine

TheGypsyQueen13. 2014. 7.2K. Incomplete.

Jack at the Museum🔄

Lorraine Anderson. 2012. 5.1K.

Just a Year

LightOnAHill. 2007. 13K.

Love, Bullets, and Suits

NightStalkerblade. 2011. 6.1K.

Manifest Destiny

GirlX2. 2010. 6.5K.

Moonshine

Burnbee. 2012. 8.6K. Incomplete.

NAtM2: War at the Smithsonian

Yuan Mi. 2009. 9.7K. Incomplete.

New Sun Rising

lazaefair. 2014. 6.9K.

Night At The Museum: Battle For Rebecca Daley

thnksfrthmmrs998. 2009. 8.3K. Incomplete.

Night at the Museum: Escape Overseas

losingsleep20. 2009. 6.4K.

Return to the Smithsonian

watersong8882. 2011. 6.8K.

Reverse

softballer15. 2010. 5.5K. Incomplete.

Strange Magic: A Night at the Museum Fanfiction

HereKittyKitty09. 2009. 8.3K. Incomplete.

Take Back The Past

The Bubblicious Genius. 2009. 8.7K.

The Love of a Pharaoh and a Night Guard

Allroundfangirli. 2014. 8.5K.

This is a rewrite of a fic of the same name, posted in 2010.

The love of the Gods

JustPuppyLove. 2011. 5.5K. Incomplete.

The Pharaoh's Affair

Petite Moineau. 2009. 8K. Incomplete.

The Promise

Mythicalnightguard. 2014. 9.1K. Incomplete.

The She Demon

ShortSindrome. 2010. 18K.

The Sound Of Music

Your Regular Belle. 2010. 7.1K. Incomplete.

Viva La France

iHannibal. 2009. 9.7K.

Welcome To The Museum

b4tmans. 2011. 5.2K. Incomplete.

While Rome Burned

csi_sanders1129. 2014. 10K.

[Fanfiction.net]

Fics that are less than 5k words, or compilations of oneshots.

A Crazy Adventure

KariFlameUser. 2009. 3.1K. Incomplete.

A Day at the Park

Umbrella Doves. 2009. 1.9K.

A Decision for All

Away.to.Nothing. 2009. 3.1K. Incomplete.

A Friendly Crash

NightWriter003. 2010. 1.1K.

Alternate Version

A Good Idea At The Time

lazaefair. 2010. 1.7K.

A Heart for a Heart

ajcas. 2014. 1.1K. Incomplete.

A night at the museum

Ilikecheerios123. 2013. 478.

A Place in the World

SparkChaser. 2012. 990. Incomplete.

A Successful Campaign

trascendenza. 2007. 300.

Русский

A Touch of Magic, a Hint of Fear

Ryuu-Xana. 2010. 1.7K.

Accident

Orchidmunkii. 2009. 3.1K.

Livejournal: Chapter One, Two, Three, Four

Aerial Acrobatics

raecat. 2009. 2.6K.

Alive

raecat. 2009. 2.3K.

An Hour's Contemplation

ShivaVixen. 2010. 2.6K.

Another Night at the Museume

FireGoddess528. 2008. 3.5K.

artificial Light

KootaJankan. 2009. 627.

At The Beginning

DeciphererofDarkness75. 2009. 1.9K.

Behind the Glass

Ceestar. 2009. 2.1K

Big Brothers are Jerks

Nicki Monaz. 2013. 1.8K.

Borrowing History

kablammo55. 2009. 2.7K. Incomplete.

Brandon Vs the Creepy Old Bridge

Jibbette. 2009. 1.2K.

Broken Panes

XTheAuthoressX. 2009. 3.9K.

Brother in Arms

daisyduke80. 2009. 802.

Cause this is THRILLER

XTheAuthoressX. 2009. 1.9K.

Chihuahuas are Annoying

Plunderer01. 2009. 2.2K. Incomplete.

Christmas At The Museum

TheTabletOfAmunet. 2014. 728.

Cleopatra coming at'cha

MonkeyGirl13. 2014. 2.1K.

Coffee

lazaefair. 2009. 1.6K.

Coming Clean

I'mAJinx. 2011. 2.4K.

Cross Country

Silver Tiger 123. 2014. 4.5K. Incomplete.

Deal

GoldenRoya. 2010. 803.

Dirty Laundry

swkaioshin. 2011. 2.2K.

Do I Love Him?

Guggi. 2010. 49.

Do or Die

TTCyclone. 2010. 2.6K.

Doomed to Friendship

MixedBerryCoughDrop. 2010. 1.1K. Incomplete.

Down the Hall

esompthin. 2014. 4.5K.

Evolution of Relationships

Cowgirl Of Egypt. 2009. 2.5K.

Fashion Sense

raecat. 2009. 898.

Fate Steps In To See You Through

BookLizard. 2011. 4.7K. Incomplete.

Final Round-Up

Crazy Diamonds. 2014. 909.

Flirtation

lazaefair. 2009. 977.

Food for Thought

Tanigi. 2010. 1.6K. Incomplete.

Forgiveness

daisyduke80. 2007. 1.6K.

Friday Night Chances

Umbrella Doves. 2009. 230.

Glue Trap

Llampaca Eating Guppy. 2014. 1.4K.

Godspeed

Scooter12345. 2010. 1K.

Good Morning, Blues

lazaefair. 2009. 583.

Haunted

GalaxyGirl317. 2014. 682.

Heart and Key

MPF0220. 2011. 2.9K. Incomplete.

Home

SapphireMoonlight24. 2009. 1.1K.

Home of Thy Father

XTheAuthoressX. 2009. 3.4K. Incomplete.

Homecoming

JDPhoenix. 2010. 2.9K.

How To Love

Wasp9000. 2011. 1.6K.

Hurt

Orchidmunkii. 2009. 1.7K.

Livejournal: Chapter One and Chapter Two

Inkpot

GalaxyGirl317. 2014. 2.8K. Incomplete.

It's Not That Easy

SapphireMoonlight24. 2009. 1.9K.

Jed and Octavius School Cuteness

PhookaUpsidedown. 2011. 867.

jed and octie short adventure

DoctorBonesFannibal. 2013. 147.

Just Your Average Day

InAMoment. 2011. 4K. Incomplete.

Life as a Model

The Curly Flea. 2011. 1K.

Lifelong Treasures

JustPuppyLove. 2011. 1.7K. Incomplete.

Love Story

SapphireMoonlight24. 2010. 1.3K.

Magical Potions

LTerassi. 2008. 1K. Incomplete.

Malak

Kantayra. 2007. 1.3K.

MaybeMisunderstandings

Kodaa. 2011. 1.7K.

Military Standards

Umbrella Doves. 2009. 1.1K.

Miniature Love

consultingviking. 2014. 649.

[AO3]

Miniature New Year's Eve

SapphireMoonlight24. 2009. 1.4K.

My Brother Torments My Heart

MyPrematureBurial1849. 2013. 4K. Incomplete.

Note: While marked Mature, nothing explicit is contained in this fic.

My Friends: Napoleon and Jedidiah

Dinosaur Imperial Soldier. 2014. 687.

My Moon

SerenityPrime. 2014. 1.4K. Incomplete.

My Museum Romance

Horsesrepic. 2014. 3.2K. Incomplete.

NATM TRUTH OR DARE!

noahandrexarementforeachothere. 2012. 1.3K.

New Life, Same Heartache🔄

Kat Lee aka Pirate Turner. 2010. 483.

Night At The Museum

Miss Loryn Emery Halliwell. 2009. 4.3K. Discontinued.

Night at the museum

Burnbee. 2012. 634.

Night at the Museum Dares

kiarafan2. 2010. 731.

Night at the Museum: Kahmunrahs revenge

MissDHope. 2009. 2.9K. Incomplete.

Night at the Museun, The Return of Kahmunrah

kiarafan2. 2010. 1.7K.

Nightmares at the Museum

Umbrella Doves. 2009. 144.

No More Sharks

Kat Lee aka Pirate Turner. 2013. 472.

No One Hears The Fallen Cactus

ReginaRomae. 2010. 2.4K.

Obvious

SapphireMoonlight24. 2009. 2.1K

One World

Angsty Anime Star. 2010. 1.9K. Incomplete.

Only One Can Win a Fight

NightWriter003. 2010. 1.2K.

Only the natural conclusion

lazaefair. 2009. 268.

Out of the Storage Closet

shelllessturtle. 2009. 1.1K.

Phoenix Tears

MercenaryBunny. 2012. 3.6K. Incomplete.

Plain and Simple, Amelia

Kat Bee Dee. 2009. 1.2K.

Plane Sailing

SapphireMoonlight24. 2009. 2.7K.

Pure Contrast

Hurricanes and Butterflies. 2009. 7.9K.

Que Je T'aime

MadameFitzroy. 2010. 2.4K.

Retribution

Simone Robinson. 2009. 1K.

Riding into the Future🔄

KatLeePT. 2010. 4K.

Rio and Night at the museum

Burnbee. 2012. 2.4K.

Roman Love

Babyprincessrainbowfish. 2014. 235.

Note: While marked as Mature, nothing of that nature happens. This may be an instance of incomplete work.

Romance and Revenge

Bonnie Celt. 2012. 3.5K.

Running Differently, Part One, Two, and Epilogue

rodlox. 2009. 2.9K.

Sands of Time

Meithne. 2009. 1.4K.

Scenes in a Container

ShivaVixen. 2013. 1K.

Shake on it

Keenir. 2011. 172.

Should've said no

Cowgirl Of Egypt. 2009. 1.4K.

Smithsonian Revolution

Antoinette-1812. 2010. 2.5K. Incomplete.

So Many Words

SteelAgainstIvory. 2010. 3.3K.

Softball

Rhio-bob. 2009. 2.4K.

Some Things You Never Knew

xXMidnaGirlXx. 2010. 1K. Incomplete.

Something New

SuperPsychoLove. 2014. 4.8K.

Stuffy

InvaderScribble. 2012. 1.5K.

Tactics🔒

Brigid. 2007. 1.1K.

Takin' Em Down

MPF0220. 2011. 525.

That Night in the Air Vent

I'mAJinx. 2011. 1.1K.

The Adventures of a Roman Cowgirl

megawoman 5210. 2010. 369.

The Choice

1stOfficerHeffalump. 2012. 155.

The Echo of Shattered Memories

My Thyla My Captain. 2011. 2.7K. Incomplete.

The Great Adventures of Jedidiah and Octavius

Shadow's creator. 2011. 2.9K. Incomplete.

The MixUp

coli narago. 2010. 1.8K. Incomplete.

The Night Guard and the Pharaoh

Umbrella Doves. 2009. 507.

The Plagues

InactiveUser1024. 2010. 2.4K. Incomplete.

The Things We Do

accj12. 2014. 1.8K. Incomplete.

The Truth About The Pharaoh

Nicki Monaz. 2012. 1.1K.

The Wall

esompthin. 2014. 1.5K.

This Can't Be Real Right?

spicea11347. 2010. 1.7K.

We Own the Night

JanuaryBaby192. 2009. 4.2K. Incomplete.

What Wonderful Friends!

KatLeePT. 2010. 2.1K.

When in Rome

Krissie. 2009. 1K.

With Great Power

Umbrella Doves. 2009. 2.2K. Incomplete.

You Ever Wanted🔄

minkhollow. 2009. 2.3K.

-old-Dare the night in the museum 1&2 people!

The Mindless Opal. 2010. 2.5K.