Author: Haf Llewelyn.

Series: Cyfres yr Onnen.

Ellis has to become a soldier, like dozens of other young men from the Trawsfynydd area, during the First World War. But Anni looks up at the stars each night and wishes that her brother could come home to Yr Ysgwrn, especially after seeing the terrible effect the fighting has had on the father of her best friend. A special prize is waiting for Ellis if he returns home safely ...

Awdur: Haf Llewelyn.

Cyfres: Cyfres yr Onnen.

Nofel hanesyddol yw Diffodd y Sêr. Mae'r stori wedi'i seilio ar hanes Hedd Wyn ac mae'r Rhyfel Byd Cyntaf yn gefndir i'r digwyddiadau.