a writer's 'ability' [='capability', 'capacity'] 'to interest' readers
He always works 'to the best of his ability'. [=as well as he can]
Does he have the 'ability' [='authority'] 'to fire' employees?
(..) Rapunzel. Now, once upon a time, a single drop of sunlight fell from the heavens. And from this small drop of sun, grew a magic, golden, flower. It had the ability to heal the sick, and injured. Oh, you see that old woman, over there? Well, centuries pass and a hop King and Queen. to have a baby, (..)2010 Tangled