Ghosts of Proctor's Theatre — Winifred Elze

In an old vaudeville theatre, the ghost of a magician challenges an adventurous young psychic to a duel at midnight. The psychic accepts. She has six hours to prepare for the fight of her life.
Her guide in exploring the theatre is Will Bradley, head of maintenance. Will is well-acquainted with the ghosts who haunt it, from Azzy the guard dog through all the numerous vaudevillians who continue to perform unseen.
One ghost has it in for him - although he did NOT kill her.
Not yet.