A captivating supernatural mystery set in a house haunted by secrets from the past.    Eleven-year-old Lolli must return to London and break a promise she made to herself - to never again enter the house in Spitalfields, an historic building managed by her family.    There, Lolli must face up to what she saw in the house several years ago and make things right for two ghosts, one friendly and one decidedly not, and open her heart to people in both the living and twilight worlds.