Old refurbished theatre, the Beryl, is re-opening. Days before opening
night, the ghost light - left on at night to appease the ghosts
of actors - is extinguished. Alice digs into the Beryl's past,
sleuthing in a network of dark backstage corridors and cobwebby
storage rooms. Gradually, she starts to uncover the hundred-year-old
secret of the theatre: a stolen diamond. Is the Beryl haunted
by a ghost - or a living thief?