# XXVI: The Astounding Truth explained — The Greene Murder Case

> Chapter companion for The Greene Murder Case by S. S. Van Dine.

## What happens

Vance reveals that Ada Greene is the murderer, having been inspired by Hans Gross's criminology manual found in Tobias Greene's library. He explains that Ada's motive was a combination of hatred, jealousy, and a desire for freedom, stemming from her mistreatment as a Cinderella figure in the Greene household and her unrequited love for Doctor Von Blon. Vance also discloses that Ada's father, Adolph Mannheim, was a homicidal criminal, providing a hereditary basis for her actions. He details how Ada executed her crimes, including the poisoning of Mrs. Greene, and how she manipulated events to cast suspicion on others.

## Themes in this chapter

### Psychological Motivation and Insanity

Vance explores Ada's psychological state, describing her as driven by inherited criminal instincts, hatred, jealousy, and a 'demoniac possession' that made her believe in her own fantasy.

### Inheritance and Material Motive

Ada's plan to inherit the Greene millions is a key motive, as she sought to rid herself of the family and gain wealth.

### Secrecy and Hidden Truth

The chapter reveals the hidden truth about Ada's parentage, her secret use of the library, and her concealed motives, all of which were obscured until Vance's investigation.

## Character check-ins

### Philo Vance

Delivers the final explanation of the crimes, revealing Ada as the murderer and detailing her motives and methods.

### Ada Greene

Revealed as the murderer; driven by hatred, jealousy, and a desire for freedom, she used knowledge from Gross's manual to commit the crimes.

### John F.-X. Markham

Listens to Vance's explanation, expressing impatience and skepticism about the motives.

### Ernest Heath

Asks clarifying questions about the details of the crimes, such as the use of poison and the revolver.

### Sibella Greene

Mentioned as the object of Ada's jealousy due to her relationship with Von Blon, and as a target of suspicion through Ada's tricks.

### Mrs. Tobias Greene

The final victim; Ada poisoned her with strychnine, and her death was made to appear as a suicide.

## Key lines

> Once I had found the basic pattern, every detail fitted perfectly into a plastic whole.

After identifying the underlying pattern, all the pieces of the puzzle fell into place seamlessly.

_Vance describes how his understanding of the crime's logic led to a complete solution._

> It wasn't money alone that inspired her. The real motive went much deeper. Indeed, it was perhaps the most powerful of all human motives—a strange, terrible combination of hate and love and jealousy and a desire for freedom.

Ada's motivation was not purely financial; it was a complex mix of intense emotions including hatred, love, jealousy, and a longing for liberation.

_Vance explains the multifaceted emotional drivers behind Ada's actions._

> She lived her dream. Many young girls are like that under the stress of ambition and hatred.

Ada fully inhabited the fantasy she created, a common psychological response in young women driven by ambition and resentment.

_Vance characterizes Ada's state of mind as a form of self-deception or possession._

## Links

- HTML: https://www.betterreads.online/discover/the_greene_murder_case_se/chapters/xxvi-the-astounding-truth
- Book: https://www.betterreads.online/discover/the_greene_murder_case_se
- All chapters: https://www.betterreads.online/discover/the_greene_murder_case_se/chapters