Fire-berry

"Every morning a bird brings me a fire-berry from the valleys of the sun, and each fire-berry takes away a little of my age."

- Ramandu

A Fire-berry was a bright red berry, which came from the valleys in the sun. Each morning some white birds came out of the Sun which ate all the food which lay upon Aslan's Table. One of the white birds brought a fire-berry for Ramandu to eat. Ramandu said that each fire-berry took away a little of his age. (He was a retired star, so he was very old).

Trivia

 * It is unknown how much age each fire-berry took away from Ramandu's age.
 * It is unknown as to whether only stars could eat them safely.