I knew I could do it all this time, said Harry, Because I'd already done it... does that make sense?
It's leprechaun gold. Vanishes after a few hours.
Harry saw the look of mingled fear and surprise on his godfather's wasted, once-handsome face as he fell through the ancient doorway and disappeared behind the veil, which fluttered for a moment as though in a high wind, then fell back into place.
Do you mean ter tell me, he growled at the Dursleys, that this boy — this boy! — knows nothin' abou'— about ANYTHING? Harry thought this was going a bit far. He had been to school, after all, and his marks weren't bad.
Stange how nearsighted being invisible can make you - said Dumbledore.
With fumbling fingers Harry started to remove his many layers of clothing. Where chivalry entered into this, he thought ruefully, he was not entirely sure, unless it counted as chivalrous that he was not calling for Hermione to do it in his stead.