From this quote in Chapter Four-The Keeper of the Keys:

“Be grateful if yeh didn’t mention that ter anyone at Hogwarts,” he said. “I’m — er — not supposed ter do magic, strictly speakin’. I was allowed ter do a bit ter follow yeh an’ get yer letters to yeh an’ stuff — "

We see that Hagrid was using magic to follow the Dursleys as they drove around Britain trying to escape from the letter-sender, which also turns out to be Hagrid himself. I was wondering if anyone has a theory as to:

  • How Hagrid tracks the Dursley's movements.
  • How Hagrid travels during this period (and how he got to the hut on the rock, which I am aware is a question that has been asked before but to which no conclusive answer has been given). Does he literally follow them, or does he track them remotely and turn up when they appear to have settled down for the night?

This quote in Chapter Five-Diagon Alley:

"How did you get here?" Harry asked, looking around for another boat. "Flew," said Hagrid. "Flew?" "Yeah - but we'll go back in this. Not s'pposed ter use magic now I've got yeh."

Shows that Hagrid was definitely using magic to travel. Harry also does not see the flying motorbike on the island so he couldn't have been using that. In addition, Hagrid cannot ride brooms or thestrals (they cannot take his weight; there is a quote but I can't find it), and he couldn't have been using the Floo network as he arrived outside the hut and not in the fireplace.

In addition, Hagrid may or may not be able to apparate. If he could, it would certainly clear this up (saying to Harry that he "flew" would be a valid simplification for somebody who literally just learned that magic exists). Obviously, Hagrid did not learn to apparate at school as he was expelled in his third year (they teach apparation in sixth year). However, because Dumbledore knows he was innocent, has clearly helped him repair his broken wand and given him permission to use magic in emergencies (plus, Hagrid is a member of the Order) I think it is reasonably likely that Dumbledore has taught Hagrid how to apparate. Considering he feels so queasy on the Gringotts cart however, I am not convinced Hagrid would opt for apparation anyway.

I would love to hear some speculation.

  • It could be possible that he was flying using the motorbike, and had it enchanted to return to Hogwarts once he found Harry and the Dursleys on the island. Commented Oct 25, 2020 at 0:00

1 Answer 1


Harry also does not see the flying motorbike on the island so he couldn't have been using that. In addition

The bike wasn't there when they arrived. It can fly, so Hagrid could have just waited until the Dursleys stopped moving and began traveling then. Probably better to wait until dark if you plan on driving a magic flying bike through the sky.

Hagrid can fly on his motorcycle, and the Ministry of Magic tracks underage wizards

The flying part is pretty easy. Hagrid had a flying motorcycle. Even if the top speed was still that of a normal vehicle, it would still be able to keep up with a car on the road. If Hagrid waited until dark he could likely fly undetected through the sky so long as he remained close to the ground.

The ministry also tracks underage wizards to ensure they don't use magic when they are not supposed to. It's a bit hit-and-miss, like when dobby triggered an investigation in Harry Potter's house. Or when Harry used magic in self-defense against the dementors. In dobby's case, he got a letter almost immediately.

  • The problem is, Harry doesn't see the flying bike when they leave.
    – Egor Hans
    Commented Feb 17, 2021 at 8:15

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