What is Grunting Fen Made of?

From Fallen London Wiki
A player-created Guide is available for this content: Embarking on a Voyage of Scientific Discovery (Guide)

How are the above links here?

Spoiler warning!
This page contains details about Fallen London Actions.
Do you dare to dig on an island that might be able to talk back?

Unlocked with Orthos is Coming! 4-5

Storylet appears in Grunting Fen


What manner of things live here?
Try some beach-combing instead