Silmarillion Post VI: Sparks

VI. - Of the Silmarils and the Unrest of the Noldor - Viper in the Empty Den

Estranged from and no longer restrained by Nerdanel, Fëanor turned that star-burning soul and ferocious talent of his to making shiny things.

( Enter the Silmarils )

Everyone knows he'll be back, however; so ended the age of innocence in Aman.

Gosh, that was a lot for a tiny chapter.