Out of sight, out of mind?

[potioncat]

 Kneasy wrote:
And I got to wondering .... 
'cos there're characters and items from past HP books that just seemed 
to drop out of sight, too. Some will turn up again, some probably 
won't, some will  have their moment of glory or infamy - and others, 
well, it'll be "I wonder what happened to...?"

Potioncat:
She hasn't really dropped out of sight. We just met her in OoP, but I 
wonder what's going on with Agnes? Is her son still visiting her and 
does he bring a big box of Droobles to pass around the ward? Or is he 
possibly detained elsewhere? Or worse, is he Mark Evans?