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- Harry: "Why can't we get through?"
- Ron: "Dunno. The barrier's sealed itself for some reason."
- — Description[src]
In September of 1992, the house elf Dobby used this charm to block the barrier to Platform Nine and Three Quarters, therefore preventing Harry Potter and Ronald Weasley from using it, as part of his plot to try to save Harry from the opening of the Chamber of Secrets.
- Harry Potter and the Chamber of Secrets (First appearance)
- Harry Potter and the Chamber of Secrets (film)
- Harry Potter and the Chamber of Secrets (video game)
- LEGO Harry Potter: Years 1-4
- Harry Potter Trading Card Game