Louisa Bullard

In the Harley Quin short story The Sign in the Sky, Louisa Bullard is a housemid working at Deering Hill, the residence of Sir George Barnaby at the village of Deering Vale. After the murder of Lady Vivien Barnaby, Louisa was persuaded to go to Canada at short notice to take up  a post at a hotel in the town of Banff. As a result, Louisa testified at the inquest but was not called as a witness at the trial of Martin Wylde for the murder.

As Harley Quin and Mr Satterthwaite observed, the haste with which Louisa departed was strange. Satterthwaite's suspicions increased when he traveled to Canada and discovered the pay offered to Louisa was artificially hugh, as though someone wanted to get her away from England in a hurry

Louisa told Satterthwaite that, on the day of the murder, she had a premonition that something was going to happen. As she was dressing, she looked out of the window and saw that the smoke from a passing train seemed to rise into the sky and form the shape of a hand with fingers crooked like they were reaching out for something. She thought it was an omen that something was going to happen. Just after this, she heard a shot. She rushed down and found that her mistress had been murdered.