The twisted ones - T. Kingfisher

When Mouse's dad asks her to clean out her dead grandmother's house, she says yes. After all, how bad could it be?Answer: pretty bad. Grandma was a hoarder, and her house is stuffedwith useless rubbish. That would be horrific enough, but there's more-Mouse stumbles across her step-grandfather's journal, which at firstseems to be filled with nonsensical rantsuntil Mouse encounters someof the terrifying things he described for herself.Alone in the woods with her dog, Mouse finds herself face to face with a series of impossible terrors-because sometimes the things thatgo bump in the night are real, and they're looking for you. And if shedoesn't face them head on, she might not survive to tell the tale.