"That's as much as I can do. At the very last, we should know they're coming, I can't guarantee it will keep out Vol—"
Hermione Granger[src]

Cave inimicum was the incantation of a protective spell[1] that produced a boundary that kept the caster hidden from others. Those who were on the other side of the shield will not be able to see them, hear them or, if the spell is well-casted, smell them.

Known uses

Caster(s) Date Notes
Hermione Granger 1997-1998 school year Hermione used this charms as part of the protective enchantments used to hide the camp she shared with Harry Potter and Ron Weasley during the hunt for the Horcruxes.
Harry Potter Would occasionally cast the protective enchantments, including this charm, to hide the camp he shared with Hermione Granger and Ron Weasley during the hunt for the Horcruxes.

Known practitioners


"Cave inimicum" is a Latin phrase meaning "beware of the enemy".

Behind the scenes

  • Given the etymology, this spell appears to warn of approaching enemies, similar to the Caterwauling Charm or Intruder Charm.
  • This spell may be similar to Repello Inimicum due to both spells sharing similar etymology, though Repello Inimicum is used to repel enemies instead of warning the caster of them, which this spell is presumed to do.


Notes and references

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Harry Potter and the Deathly Hallows, Chapter 14 (The Thief)
  2. Harry Potter and the Deathly Hallows, Chapter 27 (The Final Hiding Place)
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