Dobby is all powerful and mighty, sir.

[kenney]

No: HPFGUIDX 59631

Recently when reading Goblet, I came to wonder how those house elves 
scale the width, breadth and depth of Hogwarts, and then as I 
remembered, Dobby just snaps his fingers and disappears. The elves 
also make food disappear and reappear on tables above.

Would this be considered forms of Apparition?

Hermione constantly reminds Harry and Ron, normal Wizarding 
Apparition is simply not possible. (As read in "Hogwarts: A History,")

If house elves can use Apparition, even though wizards cant inside 
Hogwarts, does this mean house elves are more powerful than we are 
lead to believe? And might even be utilised in the downfall of 
Voldemort? Remember Dobby did a better job at the attempted murder of 
Harry than Voldemort and he flung Lucius down a fleet of stairs!

Just a thought

>From the Key of Kenney: 
Who thinks that all this hype isn't good for a Harry Potter Fanatic