"...immobilising two pixies at once with a clever Freezing Charm and stuffing them back into their cage"
—Hermione Granger's use of the charm in her Defence Against the Dark Arts class[src]

The Freezing Charm (Immobulus[1][2]) is a charm which "freezes" the target, immobilising it and stopping its functioning.[3] The movement of living or animated targets is stopped, and the functioning of objects such as Muggle burglar alarms is halted.[4]


This spell is covered in The Standard Book of Spells, Grade 2 by Miranda Goshawk. It's also taught at Hogwarts School of Witchcraft and Wizardry to second year students in Charms class.

At the end of the 1986–1987 school year, this spell was taught to Jacob's sibling by their House Prefect as a farewell gift.[5]

Known uses

Caster(s) Date Notes
Hermione Granger Fall 1992 Used this spell on a pair of pixies in her second year after her teacher tried and failed to subdue them using the incantation Peskipiksi Pesternomi.[6]
Remus Lupin 6 June, 1994 Used it on the Whomping Willow.[7]
Horace Slughorn 1996 Used this charm to freeze the burglar alarms of Muggle houses he stayed in while in hiding from the Death Eaters.[4]
Kingsley Shacklebolt 2 May, 1998 This may be the spell he used non-verbally during the Battle of Hogwarts.[8]


The incantation is derived from Latin immobilis meaning "immobile, unmoving".

Behind the scenes


Notes and references

The Standard Book of Spells
Book of Spells 1
Grade 1 · Grade 2 · Grade 3 · Grade 4 · Grade 5 · Grade 6 · Grade 7
Charms included in the series: Fire-Making Spell · Levitation Charm · Locking Spell · Mending Charm · Softening Charm · Severing Charm · Unlocking Charm · Dancing Feet Spell · Disarming Charm · Engorgement Charm · Freezing Charm · General Counter-Spell · Memory Charm · Tickling Charm · Summoning Charm · Banishing Charm · Substantive Charm