Skystar

Sky is a light gray tom  with blue eyes.

Code of the Clans

 * Sky is only briefly mentioned as a rogue. He is the best hunter from his hunting grounds. After a battle that was so dreadful that the ground beneath Fourtrees was red with blood, spirits of deceased cats came to him, and Thunder, River, Shadow, and Wind. The five cats promised to end the fighting and live separately in their own hunting areas.

Cloudstar's Journey

 * Clear Sky is briefly mentioned by Maplestar, when she is talking to Cloudstar, the current leader of SkyClan. Maplestar says to Cloudstar that when the Clans first started marking boundaries, Clear Sky was their leader. Maplestar continues to say that Clear Sky was the first cat who saw the usage in each Clan's territory, and how it could feed and support them.


 * Cloudstar mentions that they still mark the borders in his memory, and this brings the appearance of another ancient leader, Rowanstar. The former leader mentions that he had advanced upon the ideas and creations of Clear Sky, forming the boundaries even further.

Trivia

 * In an Erin Hunter Chat, Vicky revealed that Sky, Thunder, Shadow, River, and Wind did not take "-star" on the end of their names, because the tradition had not yet been established in their time.
 * This, however, contradicts information in Secrets of the Clans, which shows the founders of the Clans to have the "-star" suffix.
 * Vicky also said that she imagined Sky being a tom, but possibly not; she plans to include Sky in a main role when they write the upcoming fifth series on the very early Clans, therefore revealing more about him/her.
 * Vicky has confirmed that Clear Sky and Sky are one in the same.
 * It is mentioned in Cloudstar's Journey that Sky was leader of SkyClan when borders began to be marked. However, in Code of the Clans, Rowanstar is the leader to propose the idea of marking and patrolling borders, and the idea is first proposed by Poppycloud.