# WebtoonLib — Attack on Titan #88

## Series
- title: Attack on Titan
- slug: attack-on-titan-3f8b17

## Chapter
- number: 88
- release_date: 2025-05-29

### Summary
The truth found in the basement shatters the Survey Corps' worldview, revealing not a lost history, but a living one. Grisha Yeager's journals transport the reader to the oppressive nation of Marley, where Eldians are persecuted. The horrific, state-sanctioned murder of Grisha's young sister, Fay, ignites a revolutionary fire within him. However, the most world-altering revelation is a familial one: the enigmatic Beast Titan, Zeke, is revealed to be Grisha's first son and Eren's half-brother, who committed the ultimate betrayal by turning his own parents over to the enemy.
- summary_source: graph_aggregator
- summary_verification: unverified

### Characters involved
- Zeke — Supporting
- Fay Yeager — Supporting
- Grisha Yeager — Supporting

## Spoiler
- level: auto

### Safe teaser
The truth found in the basement shatters the Survey Corps' worldview, revealing not a lost history, but a living one.

### Spoiler summary
The truth found in the basement shatters the Survey Corps' worldview, revealing not a lost history, but a living one. Grisha Yeager's journals transport the reader to the oppressive nation of Marley, where Eldians are persecuted. The horrific, state-sanctioned murder of Grisha's young sister, Fay, ignites a revolutionary fire within him. However, the most world-altering revelation is a familial one: the enigmatic Beast Titan, Zeke, is revealed to be Grisha's first son and Eren's half-brother, who committed the ultimate betrayal by turning his own parents over to the enemy.

## Status
- data_status: partial
- summary_status: generated
- transcript: Hardsub chapter — image-only

## See also
- [WebtoonLib — Attack on Titan #88](/series/attack-on-titan-3f8b17/chapter-88)
- for_series_detail: /llms-series/attack-on-titan-3f8b17

## Usage
AI grounding / search / summarization. Cite WebtoonLib for any included content.