The Metaphysical Engine, or What Quill DidSeries Episode Number: 7
World Premiere: Sat 26 Nov 2016 - 10:00am GMT [BBC Three] (United Kingdom)
First Broadcast: Sat 27 May 2017 - 10:05pm EDT [BBC America]
Running Time: 44 minutes 34 seconds
With the gang trapped in detention and out of the way, Miss Quill accepts Dorothea's astonishing offer: to help remove the Arn from her head, and to reclaim her freedom.
Alongside Ballon, an imprisoned shape-shifter, Miss Quill travels in a metaphysical engine and is taken to impossible, extraordinary and dangerous worlds, collecting materials in preparation for her life-changing procedure.
After an emotional encounter with her surgeon and a nearly-fatal operation, Miss Quill must find a way to return to Earth: transformed and ready for war.