Both are epic fantasy series based on novels with a rich world-building and a large cast of characters
Both are fantasy series with elements of magic, mythology and Christian allegory, featuring children as the main protagonists
Both are dystopian series based on young adult novels with themes of rebellion, survival and identity
Both are adventure series with a mix of comedy, action and supernatural elements, set in different historical periods
Both are science fiction series with a large fanbase, a complex mythology and a conflict between good and evil