Kids often leave us in a situation where we have to choose between reality vs right. The reality is that a small kid can't infer what 'Darkfriends' so correctly but the right way is to 'tell them something they can relate with darkfriends in their current cognitive levels.

A huge salute for your parenting skills and a huge shout out for your depiction of such subtile emotions of parenthood and childhood in a matter of few lines.