Under The Sun
Isambard Kingdom Brunel
A railway and steamship engineer.
Isambard Kingdom Brunel was a British transportation engineer during the 19th century. He is famous for the creation of the Great Western Railway and was influential in the development of transatlantic steamships, including the Great Eastern, the first ship to lay a transatlantic telegraph cable. Ask about his Wapping Shaft.
The PCs met him while he was on guard duty at the Gate of Worlds in the Astral Sea. Probably.
More information here.