POA Ch-5 - He forgot that he remembered.

[potioncat]

No: HPFGUIDX 181617

  zanooda
> I've always found it strange that no one ever guesses that the 
> carriages are not self-propelling, but are pulled by some invisible 
> creatures. Thestrals are bound to make some sounds, and there 
should be 
> vapor from their breathing in the cold weather and other things 
like 
> that. In the rain, they must be seen as silhouettes. And what about 
> their footprints on the wet ground and on the snow? No one seems to 
> notice, ever :-).


Potioncat:
But Luna knows what they are, and I'm sure Nott has seen them. Maybe 
in other carriages, the students are discussing them. Harry wouldn't 
have chance to see the hoofprints, wasn't it raining the first time 
he rode the carriages? 

It was Hagrid who tamed the Thestrals, so I wonder how long they've 
been used to haul the carriages? Maybe none of the Weasley kids knew 
about them. 

But the real reason is, that both JKR and DD are very careful about 
keeping secrets.  Between them, they conspired to keep Harry far away 
from all things magical until just the right moment.