Errand Chronicle 3066 · Entry #5

A Foreboding Depiction

Objective
Geologist Arteedman NPC Knowledge believes he'll be able to find a clue as to what the injured sailor was talking about at the Great Library of Calpheon. Search Great Library of Calpheon for records.
Look for information at the Great Library of Calpheon;
Dialogue
Arteedman Dialogue
Before I left for Kamasylvia I read something strange at this library.
It was an old journal so the parchment was
faded and hard to read.
However, I could make out drawings of fish, and of scaled creatures.
At that time I thought it might be about Swamp Nagas,
but now I am not so sure, and I have a gut feeling that the document can help us.
The Great Library of Calpheon has books detailing all sorts of events that have occurred on this continent.
Somewhere in these bookshelves must be a clue that will help us unravel the mystery of the injured sailor.
Arteedman Dialogue (Alt)
The Great Library of Calpheon has books detailing all sorts of events that have occurred on this continent.
Somewhere in these bookshelves must be a clue that will help us unravel the mystery of the injured sailor.
Arteedman Completion
I cannot believe this.
What could it be referring to?
Other Errands in This Chronicle

18 further errands share this chronicle — the same travelers, the same stretch of road.

Details
Chronicle3066
Entry5
Quest Giver
Turn-in
Summary
I cannot believe this.
What could it be referring to?