My summaries of the five books of the
Silmarillion:
The Ainulindale: Melkor's musical mayhem makes middle-earth its mishaps.
OR
Then God said "Let there be music" and there was music. (Sorry, I realise it's a word too long...)
The Valaquenta: Good things comes in sevens.
The Quenta Silmarillion: Oooh! Shiny! Yuck, blood- love! Oooh! Shiny!
The Akallabęth: What goes up must come down.
The Rings of Power and the Third Age: See also,
The Lord of the Rings.