In the first book of the series The Lion King: Six New Adventures called A Tale of Two Brothers which was published in 1994, ...
While The Lion King alludes to Mufasa belonging to a long line of monarchs ... by Sarabi and asks Mufasa to help him win her heart. Mufasa does everything his brother asks, including lying ...
It wasn't until things began going south that prompted his non-biological brother to call him Scar ... for long as the Outsiders kill everyone except Mufasa and Taka in Mufasa: The Lion King.