There is a particular tale that I have had at the edge of my memories for a long time, but no matter what, I just cannot remember the name but I remember the story.
The story is basically summed like this: Three orphans parents die of an accident, and they move into a sinister old man's house. This man treats the orphans horribly, and thus they move to a new home with a new foster parent. The foster parent unexpectedly dies, and the orphans move again.
I remember reading the first 9 books in that series, dunno why I never finished it. Think I realized it wasn't very good, after the baby became like a master with mushrooms or maps or whatever, it was just too eh.