There are 14 adventures here, not linked together to make a campaign, but to tie nine years of adventuring and perhaps multiple generations of Jackals together in a single story.
Jackals is a bronze age fantasy, and it's a gritty high fantasy at that. It's sorcery and sandals in the style of the Epic of Gilgamesh, and it gets the thumbs up from this ancient one.
Jackals is sandals and sorcery setting inspired by myths, cultures and histories of the ancient Near East.
There are the Four Kingdoms of the Mechanical Sun that war to keep a golem-hauled solar artefact in their territory.