The darkest king (I signori degli Inferi Vol. 15)

The characters feel layered and unpredictable, which adds depth to the story. I'm curious if this was based on myth, personal vision, or a mix of both.

His vulnerability and desire for redemption make him compelling, but his actions can be so brutal. How did others reconcile these feelings?

The magic and politics are intricate but never overwhelming. I'm interested in knowing whether the world was mapped out beforehand or grew during writing.