When Violetkit (Violetshine) and Twigkit (Twigbranch) were found under the tunnel by Needlepaw (Needletail) and Alderpaw (Alderheart), they stayed in ThunderClan for the first moon and had Lillyheart as their adopted mother. Then, at the next gathering, Bramblestar told all the clans that the two kits were part of the prophecy embrace what you find in the shadows, for only they can clear the sky. Shadow Clan wanted to take a kit because Needlepaw had found one of them. So, after some brief arguing, Shadow Clan took Violetkit home, to have Pinenose as her new mother. In the time being should Violetpaw and Twigpawe stayed in Thunder Clan, should they both have gone to Shadow Clan, or should they haved done something completely different. (Later in the series, both Twigpaw and Violetpaw go to Sky Clan for a while, but Twigpaw decided to go back to Thunder Clan and live there. Violetpaw, stayed in Sky Clan.)
Links:
Violetshine https://warriors.fandom.com/wiki/Violetshine
Twigbranch https://warriors.fandom.com/wiki/Twigbranch
Needletail https://warriors.fandom.com/wiki/Needletail
Alderheart https://warriors.fandom.com/wiki/Alderheart
Thunder Clan https://warriors.fandom.com/wiki/ThunderClan
Bramblestar https://warriors.fandom.com/wiki/Bramblestar
Shadow Clan https://warriors.fandom.com/wiki/ShadowClan
Skyclan https://warriors.fandom.com/wiki/SkyClan
For more Warriors info, go to Warriors Wiki
Thundercats, an animated tv series/game, but rather a question forwarrior-cats, a fantasy book series. It appears we will have to (most likely) create a tag for this question.