Hilda: A Netflix Original Series Wiki

Rock-Chewing Slugs are white slugs that live in underground places. As their name suggests, they are capable of biting through rocks, which seem to be their main diet.

Most are small, barely larger than regular slugs, but in the Stone Forest lives at least one giant-sized slug.

Trolls are afraid of them.


Graphic novels

The slugs are first seen in "Hilda and the Stone Forest". A great many of them reside in the Stone Forest.

Hilda made great use of the slug's ability to chew through hard material when she had tried to find her mother and Twig, but found her path blocked by a hatch with a padlock. She picked up a slug and tricked it into biting through the padlock.

Later in the same story, Johanna and Hilda managed to temporarily escape the Two-Headed Troll that was chasing them by running into a cave filled with these slugs, including a gigantic one. The troll didn't dare to follow them there.

Animated series

In the animated series, a rock-chewing slug has a cameo in "Chapter 4: The Sparrow Scouts", where it is seen in one of the Vittra tunnels.

The slugs are prominently featured in "Chapter 13: The Stone Forest", which adapts "Hilda and the Stone Forest". Like in that story, they populate the Stone Forest, Hilda uses one to open a padlock, and Johanna and Hilda are able to hide from the Two-Headed Troll by fleeing into a tunnel full of the slugs.


The slugs appear in "Hilda and the White Woff", which adapts the events of "Chapter 13: The Stone Forest". They are called rock-eating slugs here, and Hilda recalls reading about them in Emil Gammelplassen's book Caves and their Unfriendly Occupants.


ve Characters
Main characters HildaJohannaFridaDavidAlfur AldricTwig
Sparrow Scouts Raven LeaderWilly
Trolberg Safety Patrol Erik AhlbergGerda GustavKeeper of the BellSelby
Witches KaisaMatilda PilqvistThe Committee of Three
Vikings Torgund's clan (TorgundOlafBjarnsenElofUliSolveig) • Knudsen clan (KnudsenGunnhildFergurdsenRedsdottirErrolHrothgar)
Other kids TrevorTrevor's friends
Other adults Bearded sailorDavid's dadDavid's momEdmund AhlbergEmil GammelplassenFrida's dadFrida's momFarmerEnid HallgrimLinn JacobsenLloydPeter OstenfeldPrincipal MagnussonKelly's momPeg legged sailorVictoria Van GaleTrevor's momMulch ManagerSigrid SpenstigUnnamed ladyGil JonesWandaHead of Marketing of Jortsother
Elves AdelineAldric FamilyAloysiusBarchBragga Family (Agnes BraggaBartell Bragga) • Elf KingElf Prime MinisterElf mayorGertrudePrime Minister's cavalryRupertTomasJester elfUlrik
Giants: Forest GiantJorgenIllusSigmund
Trolls AmmaBabaTryllaBaby trollFemale trollTrundleTrundle's brotherTwo-Headed Troll
Nisse Tontu (alpha)Tontu (beta)Victoria Van Gale's nisseTontu (David’s house)
Spirits: Water SpiritsWeather Spirits
Marra David's MarraKelly
Ghosts Abigail's dadCraigie WilliamsEngilbjort WilliamsGhost refereeDraugen (AbigailNicholasDraugen Captain) • Shoe-stealing ghost
Yule Lads KertasnikirPvorusleikirKetkrokurStekkjarsaurGluggagaegir
Other creatures CedricDeer-foxes (Deer-Fox HerdTwig's parents) • Barghest (Jellybean) • GrylaThe House in the WoodsKrakenNittens (AngelinaPeppercorn) • Rat KingRock-Chewing SlugSigurdSalt-LionThunderbird (The Great Raven) • Tide MiceVittra (Georgie) • Walking Land CreatureWoffWood Folk (Wood Man) • LindwormTriffidEldridVoid of No ReturnTildy's monstersTime WormRed wolfother