‘And in the morning there was a large blue hollyhock,’ said Miss Helier joyfully.

‘Quite right,’ said Colonel Bantry. ‘Or at any rate, nearly right. One flower of a hollyhock just above her head had turned blue. It staggered George; and of course the more it staggered him the more he refused to take the thing seriously. He insisted that the whole thing was some kind of practical joke. He ignored the evidence of the locked door and the fact that Mrs Pritchard discovered the change before anyone—even Nurse Copling—was admitted.

‘It staggered George; and it made him unreasonable. His wife wanted to leave the house, and he wouldn’t let her. He was inclined to believe in the supernatural for the first time, but he wasn’t going to admit it. He usually gave in to his wife, but this time he wouldn’t. Mary was not to make a fool of herself, he said. The whole thing was the most infernal nonsense.

‘And so the next month sped away. Mrs Pritchard made less protest than one would have imagined. I think she was superstitious enough to believe that she couldn’t escape her fate. She repeated again and again: “The blue primrose—warning. The blue hollyhock—danger. The blue geranium—death.” And she would lie looking at the clump of pinky-red geraniums nearest her bed.

‘The whole business was pretty nervy. Even the nurse caught the infection. She came to George two days before full moon and begged him to take Mrs Pritchard away. George was angry.

‘“If all the flowers on that damned wall turned into blue devils it couldn’t kill anyone!” he shouted.

‘“It might. Shock has killed people before now.”

‘“Nonsense,” said George.

‘George has always been a shade pig-headed. You can’t drive him. I believe he had a secret idea that his wife worked the change herself and that it was all some morbid hysterical plan of hers.

‘Well, the fatal night came. Mrs Pritchard locked the door as usual. She was very calm—in almost an exalted state of mind. The nurse was worried by her state—wanted to give her a stimulant, an injection of strychnine, but Mrs Pritchard refused. In a way, I believe, she was enjoying herself. George said she was.’

‘I think that’s quite possible,’ said Mrs Bantry. ‘There must have been a strange sort of glamour about the whole thing.’

‘There was no violent ringing of a bell the next morning. Mrs Pritchard usually woke about eight. When, at eight-thirty, there was no sign from her, nurse rapped loudly on the door. Getting no reply, she fetched George, and insisted on the door being broken open. They did so with the help of a chisel.

‘One look at the still figure on the bed was enough for Nurse Copling. She sent George to telephone for the doctor, but it was too late. Mrs Pritchard, he said, must have been dead at least eight hours. Her smelling salts lay by her hand on the bed, and on the wall beside her one of the pinky-red geraniums was a bright deep blue.’