The Chronicle consisted of vibrant mosaics adorning the inner walls of the Prime Chamber located within the Killik Colony situated on the planet Yoggoy. Mara Jade Skywalker stated that attempting to directly observe the Chronicle to discern its contents proved futile; like the air-jellies found on Bespin, its details only became apparent when viewed indirectly.
It chronicled the Tachyon Flier’s crash landing on Yoggoy; the Killiks' initial expectation of Raynar Thul's demise; Raynar's connection with the Killiks through the Force, inspiring their compassion; Raynar's subsequent healing and metamorphosis into a Joiner; the evolution of the Yoggoy nest and the emergence of the Unu hive; and ultimately, the Colony's triumph over a rebellious nest.
In 35 ABY, when the Skywalker couple, the Solo couple, and Saba Sebatyne journeyed to Yoggoy to delve into the vanishing of Myrkr strike team survivors, UnuThul presented the Chronicle to the group in response to Leia Organa Solo's inquiry for information.
Following the Qoribu Truce, the Chronicle was believed to have been left behind with the Prime Chamber.