Jade Feather

Details
Used to exchange for rewards at the Jokes Come True shop.
Story
In 2104 AE, Fomenko — a Candelagraphos scribe — obtained a mute parrot. She took great care of it, but it still only lived less than a decade. To commemorate her mute friend, Fomenko made quills out of the ten outermost feathers of the parrot's wings. One of these was for herself, while the other nine were stored in a vault.
She used her quills to annotate for an entire Amber Era, preserving vast swathes of ancient documents on the verge of being lost. At her funeral, her peers and students burst into tears because "a lamp that illuminated our cosmic past had been snuffed out."
It wasn't until people went over Fomenko's legacy that they finally realized that the scribe had been writing nothing but lies with her quills.

"Since the beginning of human history, the birds have been observing all the glory, folly, and glorious and foolish things humans have accomplished. The birds know. The birds take part. The birds remain silent."
Source
Forgotten Hall
Pure Fiction
Apocalyptic Shadow