The main conflict revolves around the differing approaches to magic between Mr. Norrell and Jonathan Strange. Mr. Norrell seeks to control and regulate magic, while Jonathan Strange is more adventurous and willing to explore its unknown aspects. This difference in philosophy leads to a rivalry that drives much of the plot.

The Raven King, also known as John Uskglass, is a legendary and enigmatic figure in the novel. He represents the ancient and wild aspects of magic that contrast with Mr. Norrell's structured approach. Jonathan Strange becomes increasingly obsessed with the Raven King, which adds to the tension between the two main characters.

Susanna Clarke's novel is set in the early 19th century and incorporates real historical events and figures, such as the Napoleonic Wars, into its narrative. The author weaves these historical details with elements of fantasy, such as the existence of magic and mythical beings, creating a rich and immersive world that feels both authentic and fantastical.