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Foglers or foglets (Polish: Mglak) are magical beings said to have arrived during the Conjunction of the Spheres. They tend to be found mainly in swamps, forests, or in the mountains. They are able to lure their prey in traps using magic. Foglers are regarded as essentially humanoid, but with an ethereal quality. They have glowing eyes and mouths, keen ears and long pointed fingers. They feed on the bodies of their victims.

I looked for the words "Witcher urgently needed". And then there'd be a sacred site, a dungeon, necropolis or ruins, forest ravine or grotto hidden in the mountains, full of bones and stinking carcasses. Some creatures which lived to kill, out of hunger, for pleasure, or invoked by some sick will. A manticore, wyvern, fogler, aeschna, ilyocoris, chimera, leshy, vampire, ghoul, graveir, were-wolf, giant scorpion, striga, black annis, kikimora, vypper... so many I've killed.
— pg(s). 116, "The Voice of Reason 4", in the collection The Last Wish (UK edition)
— pg(s). 148, "The Voice of Reason 4", in the collection The Last Wish (US edition)
He drew a pouch from beneath his pillow and quickly counted out some ten-crown coins. One hundred fifty for yesterday's manticore. Fifty for the fogler he had been commissioned to kill by the headman of a village near Carreras. And fifty for the werewolf some settlers from Burdorff had driven out of hiding for him.
— pg(s). 15, Time of Contempt (UK edition)

In The Witcher 3: Wild Hunt[]

Tw3 journal foglet.png
Ignis Fatuus
in fog
Vulnerable to
Moon dust
Necrophage oils
use fog for separating travelers from each other, hiding trails and deafening noise; emit a pale light they use to lure those lost in the fog towards the ravines, swamps or caves in which they make their lairs
Foglet teeth
Foglet mutagen
Lesser blue mutagen
Powdered monster tissue
Monster saliva
Monster tongue
Monster tooth
Monster brain
Monster blood
Monster bone
Monster claw
Monster ear
Monster eye
Monster heart
Fifth essence
Foglets can appear wherever thick fog arises: swamplands, mountain passes or the shores of rivers and lakes. If no fog is forthcoming, they can create or summon it themselves. By manipulating fog they can separate travelers from each other, hide trails and deafen noise. Like ghastly glowworms, their bodies emit a pale light they use to lure those lost in the fog towards the ravines, swamps or caves in which they make their lairs. When fighting foglets, a witcher must remain calm and keep his wits about him no matter what. Since foglets can take on immaterial form, a slight shimmer of air or a rustle in the grass might be the only clues a witcher has to their location. Casting the AARD Sign at these beings will cause them to become tangible, giving purchase to blades and other weapons. - Announcement of this creature by CD Projekt RED on 17th October 2014 at thewitcher.com

Associated quest[]

Bestiary entry[]

If night ever catches you in the swamps, stay put and wait for dawn, even if it means standing waist-deep in water with leeches crawling down your trousers. Most important of all, if you see a light in the fog, never, and I mean never, go towards it.
— Johannes Strudd, guide
Fog is the traveler's foe. In the forest, it can make one lose one's way, at sea, it can send one sailing into the rocks. Yet such dangers are nothing compared to the monsters known as foglets which sometimes lurk within it. These creatures have powerful arms and claws like Zerrikanian kinjals, yet what makes them truly dangerous is their mastery of deception, beguilement and disorientation. Many times they need not attack at all, instead simply driving their prey to madness or into boggy marshlands, after which they wait patiently for it to drown in the muddy waters.