Feathertail dies in the New Prophecy book, the one called Dawn....
Moonrise
The mountain lion that Feathertail killed in the book "Moonrise" from the Warriors series is called Sharptooth.
Riverclan and her and her brother(Stormfur) stayed with Thunderclan for a while.
light gray with blue eyes
a silver-grey tabby she-cat with bright blue eyes
Yes, he does. Feathertail dies trying to save The Tribe of Rushing Water and her Clanmates, along with Crowfeather, the cat she loved. -Bluestar127
No she never FULLY has a mate. But on the trip to find Midnight, Feathertail and Crowpaw get very close. Since they were from seperate clans, they never fully became mates. Then she died in the mountains.
she was about 14-15 moons old when she died so i guess shes like 20-30 moons old now.
When Squirrelpaw, Brambleclaw, Tawnypelt, Stormfur, Feathertail, and Crowpaw go off on their journey to find the new home for the clans, they meet the Tribe of Rushing Water. They have a big problem... Sharptooth(a mountain lion). The cats decide to help the tribe. During the battle Crowpaw gets cornered by Sharptooth. To save Crowpaw, Feathertail jumps off a ledge and onto a stalactite directly above the mountain lion. The stalactite goes down, along with Feathertail, into the mountain lion's back. The force killed Feathertail.
It is just a matter of opinion as both Mistyfoot and Feathertail have individual personalities. However, both cats share many similarities: they are both half RiverClan and half ThunderClan she-cats that live in RiverClan. Feathertail is also Mistyfoot's cousin.
I dont know the answer but on wikipedia you can search Feathertail or sorreltail( there is a warriors wiki) and then at the bottom of the page there is a family tree. If you think that becsause there names both end in tail then probably not, their are a lot of cats with the ending tail, its just common, and has nothing to do with family.
[SPOILER ALERT] Crowfeather has kits with Leafpool and his WindClan mate, so obviously he does.