"The Eris Fairie is one of the most beautiful and bewitching creatures the Troop has never seen. The Eris moves at super-speed, rendering it invisible to the human eye."
―The Troop official site's description of the Eris Fairie
Eris Fairie

Eris Returns


5-5.1 feet


100 lbs

Special Abilities:

Moves at super speed

Eris Fairies are beautiful monsters which can move at superspeed.



An Eris Fairie is trapped in the Human World and thus unable to get back to her boyfriend in the Monster World. She takes her anger out on other couples at Lakewood High by using her super-speed to break them up. Felix eventually captures the Eris Fairie with a ring containing a movement-triggered freezer and ties her to a chair to prevent her from using her super-speed to escape when she thaws.

Felix demands to know why she was breaking up couples, and Eris explains. Felix then releases a swarm of Dimension Mites to open a portal to the monster world for Eris to return through. Eris returns through the portal back to the monster world, but not before she tells Felix that he has a crush in a chemistry class. The portal then closes behind her.

Eris ReturnsEdit

Another Eris Fairie called Cecillia, the sister of the Fairie that came to Lakewood High on Valentine's Day one year earlier, appears exactly one year later and falls in love with Etienne, mistaking him for Felix. The two make a belt for Cecillia that lets her move at human speed (so that Etienne can see her), and then begin dating. The two go to the school prom, where Todd, Cecilia's ex-boyfriend, attacks. Cecilia passionately says goodbye to Etienne, before opening a portal and pushing herself and Todd in, back to the monster dimension.


When an Eris Fairie is separated from her boyfriend (i.e. by crossing to the human world and then becoming marooned there) she will usually take her anger out on others until she is able to return to the monster world.



Eris Fairies resemble beautiful women.

Special AbilitiesEdit

Eris Fairies appear to be able to slow down time around them, effectively allowing them to move at superspeed. One Eris Fairie was also shown to have the ability to open portals.


Eris Fairies can be frozen, and if they are restrained, they will be unable to use their 'superspeed' to get away.


Season 1 Monsters

Do The Worm: Mongolian Death WormSnark
Forest Grump: Dryad
There Is No "I" in Monster Hunter: Fire SalamanderGleegorRepticore
Welcome to the Jungle: Oscillating Rainbow SlugBasilisk
Pajama Game...of Death: Vespinox
Taming of the Cube: Gelatinous Cube
No More Master Nice Guy: DoulosHelmatrop
The Great Punkin: DankerRatadonVespinoxKaijuOscillating Rainbow SlugBasiliskTail MonsterGibbering TroolisMongolian Death WormRepticore
Tentacle Face: KaijuBehemothScreaming Tree Weasel
Lost in Translation: Borlak
The Good, the Bad, and the Ickie Doll: Vapor MonsterGleegor
The Substitute: Locht
Unpleasantville: Swarm MonstersHive Monster

My Gus Is Back, and You're Gonna Be In Trouble: Estrine GorgFlying Ice SlicerEntrusian Snot SlugScab-Crusted GnarlDimension MitesHuggie BearQuadro-Gob
Speed: Eris FairieDimension Mites
I, Monster: One-Horned DiabloPeacock MonsterVercingetorix
A Moth to the Spotlight: Vampire MothSnark
Vampsters: Vampster
Snarked Up: GriffinSnark
Itty Bitty Baby Dragon: Dragon
The Wrath of the Wraith: Wraith
Hayley and Felix on the Side: HideocuteTwo-Headed Zylork
Double Felix: Peruvian Swamp Slug
Don't Talk to Dr. Cranius: Dr. Cranius
Batteries Not Included: Oculypse
The Next Stop: Lakewood: Quadro-GobLochtKaijuGelatinous CubeDimension MitesDryadOculypseVespinoxBorlakHive Monster

Season 2 Monsters

The Triangle: Ice GhoulBrain Gorb
The Monster Within: Seven-Winged KritlakBlood ThrasherHusking DrakVenomous TrogFestering Harpie
It's All in the Game: KaijuMind Leech
Mirrors: Reflecto LuponisSnark
Oh, Brother: Blood ThrasherDimension Mites
Through the Looking Glass: BasiliskDimension MitesFungus MonsterPurple Flying MonsterTwo-Headed ZylorkBlood ThrasherTentacle MonsterBehemothRepticoreQuadro-GobPurple Humanoid MonsterDoom HoundBorlakDragonSnark
Start Me Up: Spark Monster

This Bird You Cannot Change: OculypseKloxnixonanelsus
A Sniff Too Far: Flaying Pincher MoleSniffer
Eris Returns: RatadonSnarkEris FairieVrog
Road Trip: Fog Monster
The Prisoner of Lakewood: EvolvosaurusGleegor
Ice Hassles: Ice GhoulBlood Thrasher
Doom Hound: Doom HoundSnark