Radiant

A Radiant is a prestigious award only the best Foxfire prodigies recieve. Alvar recieved this award pre-Keeper. When he brought it home, he told Della to put it on the mantel so it could "inspire Fitz and Biana to work harder". In Nightfall, Fitz gives it to Sophie as a present so she can hurl it down the stairs they were going up and shatter it.