This first turns up in Book 1. Come back when you get there.
place
Cameron's Sluice
First appears in Book 1: The Many-Colored Land, chapter 32 (12)
Appearances
B1
B2
B3
B4
What you know
Book 1: The Many-Colored Land
Ch 32Cameron's Sluice is a violent canyon rapid on the Rhône that Tanu passengers cannot bear, so they are put to sleep.
Key moments
Book 1 · Ch 32Shooting Cameron's Sluice
The party boards the Mojo and rides the Rhône through violent rapids; most passengers are asleep or calmed, while Bryan stays awake and Highjohn offers him a job.