The Chamber of Waters was created in 2002. It plays on the idea that flowing water represents time. The felines were used because both represent secrets and hidden knowledge.
"Sicotta Leiwa", as it is also known, is a mystical cave. It isn't located in any one world, but forms a bridge between three. The physical entrance is impossible to find, only the two main exits. The tunnel leads to a dead-end where a wolf paw print and a human hand print seem pressed into the stone. It fits Ashtree's hand and Zephyr's paw perfectly; when they place them inside, a door opens... right into Ashtree's closet. At the other end of the tunnel is the pool with its waterfall. Walking through the falls will take you to Aufaniae.
The Chamber of Waters was named in reference to the Chamber of Secrets in Harry Potter. Cutler has a great deal of respect for J.K. Rowling.