Long Lankin by Lindsey Barraclough
Beware of Long Lankin . . .
When Cora and her little sister Mimi are sent to stay with their great-aunt in the isolated village of Bryers Guerdon, they sense immediately that they're not welcome. What they don't know is that the last time two young girls were at Guerdon Hall, their visit ended in a mysterious, violent tragedy.
Something dark and evil has haunted the village for centuries. Now it has set eyes on its next victim, and it will stop at nothing to lay claim to her. With the help of local schoolboys Roger and Peter, Cora must uncover the horrifying secrets buried deep within Bryers Guerdon - before it is too late for Mimi.
Bewitching and atmospheric, this is a truly stunning debut that will linger with you for days after the final, chilling pages.