The poisonous herbs developed by him make his garden a zone of death. Some of the herbs are so lethal that even their smell can kill a man. Breathing the poisonous air of the garden makes the professor and his daughter immune to poison. No poison can kill them. But any antidote can kill them because poison is the breath of their life. So the professor’s daughter dies the moment she drinks a few drops of Baglioni’s antidote. The death of the professor’s only daughter is the moral lesson of the story.
The killers in the story just announce that they are going to kill a man. They do not bother about excuses. They are callous like machines— horror proof and even shame proof. We see that crime is no longer a horror in American society. For some people it is just business. You can hire a killer as easily as you can engage a taxi. This is, of course, the bottom of moral decline.
They were provided with the available food. They ate with their gloves on. Their faces were different but they were dressed like twins. They were wearing derby hats, tight over coats, silk mufflers and gloves. They talked vulgarly. They covered the staff with guns and started setting the scene for