# III: A Quarter of a Million Light Years explained — Invaders from the Infinite

> Chapter companion for Invaders from the Infinite by John W. Campbell.

## What happens

Zezdon Afthen explains the peaceful, mind-based civilization of the Ortolians and how they detected the Thessians through mental vibration instruments. The Thessians, a powerful and evil race, plan to conquer Ortol using a molecular ray. The Ortolians used thought amplification to implant ideas in the Thessian leader's mind, leading to a trap. Morey reveals Earth's advanced capabilities and suggests an alliance with the Sirians. Arcot plans to retrieve the Thessian ship from Mars, equip the Ancient Mariner, and travel to Ortol to help defend against the impending Thessian attack.

## Themes in this chapter

### Unity Against a Common Enemy

Earth and the Ortolians must unite to face the Thessian threat, with potential alliance with the Sirians.

### The Threat of Imperialism and Conquest

The Thessians plan to destroy the Ortolians and colonize their world, representing a clear imperialist threat.

### The Value of Knowledge and Science

The Ortolians use mental science and thought amplification to gather intelligence, while Earth's scientific advancements are key to defense.

## Character check-ins

### Zezdon Afthen

Explains the Ortolian civilization's reliance on mental knowledge and their detection of the Thessians through thought amplification.

### Morey

Reveals Earth's advanced capabilities and suggests forming an alliance with the Sirians against the Thessians.

### Arcot

Plans to retrieve the Thessian ship from Mars, equip the Ancient Mariner with a ray-screen, and lead a mission to Ortol.

### Zezdon Inthel

Identifies Ortol as the Ortolians' home planet.

### Zezdon Fentes

Assisted in setting up the thought-amplification apparatus and is expected to stay on Earth to help.

## Key lines

> Our civilization is built largely on the knowledge of the mind. We cannot have criminals, for the man who plots evil is surely found out by his thoughts.

The Ortolian society is based on mental awareness, where evil intentions are detected through thoughts, preventing crime.

_Zezdon Afthen describes the foundation of Ortolian civilization._

> We saw them investigate the planet. We saw them plan to destroy any people they found with a ray which was as follows: 'the ray which makes all parts move as one.'

Through thought amplification, the Ortolians observed the Thessians planning to use a molecular ray to annihilate any inhabitants.

_Zezdon Afthen recounts the Ortolians' surveillance of the Thessians._

> We had to stop them so we did what we could. We had powerful machines, which would amplify and broadcast our thoughts. So we broadcast our thought-waves, and implanted in the mind of their leader that it would be wise to land, and learn the extent of the civilization, and the weapons to be met.

The Ortolians used thought broadcasting to manipulate the Thessian leader into landing at a prepared location.

_Zezdon Afthen explains the Ortolians' defensive strategy._

## Links

- HTML: https://www.betterreads.online/discover/invaders_from_the_infinite_se/chapters/iii-a-quarter-of-a-million-light-years
- Book: https://www.betterreads.online/discover/invaders_from_the_infinite_se
- All chapters: https://www.betterreads.online/discover/invaders_from_the_infinite_se/chapters