The midnight chimes - Paula Harrison

Life was very ordinary for ten-year-old Robyn Silver. The often-ignored
middle child in a big family, the most excitement she had
was the dash to the dinner table to reach the last slice of pizza.
Until. she begins to see creepy creatures around her town - creatures
that are invisible to everyone else. And when her school is
forced to decamp to mysterious Grimdean House and she meets its equally
mysterious owner, Mr Cryptorum, Robyn finds herself catapulted
headfirst into an extraordinary adventure - with more excitement
than she could possibly have imagined.
Be careful what you wish for.