| Undying Alchemist Leviathan | |
|---|---|
 | |
| Information | |
| Date Started | Winter of 1899 |
| Date Ended | 1924, first day of Autumn |
| Location | Saint Marguerite Academy Clock Tower |
| Result | Resolved |
| Media Duration | |
| Light Novel | Volume IV |
| Anime | Episodes 13, 14 and 15 |
| Manga | Chapters 31 to 35 |
| Involved Persons | |
| Victims | Ian Musgrave (in 1899) Several outsiders (several years ago) Kai Wong (in 1924) |
| Suspects | Leviathan (deceased 25 years ago) |
| Chronology | |
| Previous Case | Letters from the Underworld |
| Current Case | Undying Alchemist Leviathan |
| Next Case | The Weeping Maria's Face in the Sky |
| Case Overview Index | |
The case of the Undying Alchemist Leviathan is the twelfth case featured in the Gosick anime series.
In separate events, both Kazuya and Victorique discover the mysterious tale of Leviathan, an alchemist who has earned a place alongside the many ghost stories of Sauville. As Kazuya and Avril Bradley sneak into the infamous lair of the alchemist, Victorique receives a challenge written by Leviathan himself, dated in the year 1899, twenty-five years into the past.