Tired Soul

Sirius Black is in jail for killing 12 innocent muggles where as his 2 year old ends up in the hands of Dumbledore and instead of looking after properly she ends up in a orphanage for young girls.

But what If this orphanage was just a mask for something more sinister and Dumbledore knew all along just like he knew about Sirius being innocent and about Peter.

Peter being his own fault: for when he came to him asking, pleading, begging he turned away.

Dumbledore knew and did nothing.