Tiergan utilizes Indurite in order to transform into Granite, his Black Swan alter-ego. As mentioned in Book 4: Neverseen, he consumes this chalky powder when needing to switch identities. It caused his body to crystallize and harden, making him look like a talking statue, which is one reason why he is called Granite. Another reason for this name is that Granite is an anagram of the name Tiergan.

Community content is available under CC-BY-SA unless otherwise noted.