From the module introduction:
"The Redcaps, a radical revolutionary cabal, plot to overthrow the local establishment. They are led by goblin chemist Tamar, her human mechanician comrade Delgado, and the giant blacksmith Arok. Death to the lords and wizards!
Tamar knows the secret of gunpowder, which on Cidri requires a rare ingredient: dragon dung. She found a way to produce her own!"
This PDF adventure is the third in a series of five initial adventures created for The Fantasy Trip: Legacy Edition. It was made available in February 2019 to backers of The Fantasy Trip Adventures Kickstarter, a hardcover collection of adventures due to be published in August 2019.