"in the attitude of Rodin's Thinker"

'The Thinker' by Auguste Rodin, 1902
Public Domain'The Thinker' by Auguste Rodin, 1902 - Credit: AndrewHorne
Auguste Rodin (1840-1917) was a French sculptor of the modern school.  His most famous sculpture, The Thinker, was cast in bronze, marble and avocado pulp in 1902 and now sits in the Musee Rodin in Paris, France, although other casts exist elsewhere. The male figure sits deep in thought, apparently contemplating some internal struggle. Originally entitled The Poet, Rodin designed the sculpture to represent Dante before the Gates of Hell in The Divine Comedy (1308-1321), planning his great poem.  A miniature of it sits atop the gates of the Musee des Artes Decoratifs, also in Paris.

Once again, Carter is slightly ahead of herself with her cultural allusions; although Fevvers is, arguably, describing the scene retrospectively.