The Night Gardener, by Jonathan Auxier

Awesomely Creepy MG Read

From Goodreads:

The Night Gardener follows two abandoned Irish siblings who travel to work as servants at a creepy, crumbling English manor house. But the house and its family are not quite what they seem. Soon the children are confronted by a mysterious spectre and an ancient curse that threatens their very lives. With Auxier’s exquisite command of language, The Night Gardener is a mesmerizing read and a classic in the making.   

https://www.goodreads.com/book/show/18405537-the-night-gardener

"Storytelling and the secret desires of the heart wind together in this atmospheric novel that doubles as a ghost tale."
--School Library Journal, starred review

Y'all, I don't even like scary books, but I loved this one.  It's scary, but the kids are so smart and resourceful that I trusted them to make wise choices.  It's creepy as all get-out-- don't read this alone on a stormy night-- but it's not gory.  If you like getting goosebumps from your books, this is a good pick for you!