Speculative fiction is a broad umbrella category of narrative fiction referring to any fiction story that includes elements, settings and characters whose features are created out of imagination and speculation rather than based on attested reality and everyday life. That encompasses the genres of science fiction, fantasy, science fantasy, horror, alternative history, and magic realism.
When Lancelot is accused of murdering Queen Guenevere's father, she begs
Merlin to prove his innocence. Though inclined to leave the faithless
knight to his fate, Merlin risks his very life to find the truth at King