siriuswriter
Senior Member
Right, so, speaking as a fanatic fan that actually thought about this, this is how I do it.
I borrow one of those tanks of water that automatically shut and lock that are used in "The Prestige" at the end, and set it where Harry is due to apparate.
Harry Apparates to the Square, and drops his wand with surprise. It's at the bottom of the water tank. Harry tries to magick it up by using the Accio Spell... but oh wait, you can't talk in water. He was able to in Goblet of Fire, but only because he had the Gillyweed.
Let's think of DH pt1 feats : oh wait, when he went into the water in DH, he was wearing the Locket. So on top of not being able to speak, he can't get to the bottom of the tank to retrieve his wand because the Locket keeps pulling him up.
Even if he doesn't lose his wand on landing, again, no one can speak aaduring water. Harry shows two examples of silent magic in DH; when the Trio are trying to "kill" the Locket. But again, Harry has the Locket on [as per the movie when Harry goes into water], and that, plus the panic, keeps Harry from using silent magic and wandless magic.
Harry drowns within a few minutes.