What's the Name of That Book??? discussion

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Griffin's Castle
SOLVED: Children's/YA
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SOLVED. Fantasy/ Middle schooler possibly Scholastic published book on a girl to moves (inherits) a big house with her mother. Includes Gargoyles. [s]
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From what I could remember, it's about a young, kind girl who either inherits a big house or lives at a big manor where her mom works as a maid. There's a old man character in it that could possibly her benefactor. I also remember it having a fantasy element of talking gargoyles or other stone creatures.
I was in middle school (around 2011-2014) when I read this, so it is probably meant for a middle schooler or it could be a clean fantasy read.
Again, apologies for the vague description!