She doesn't
maybe in the battle?!
So far she has not died, and it is possible she will not die in the series, but retire.
I'm reading my first Warriors, Firestar's Quest,and im pretty sure Sandstorm does not die.
Redtail's mate in the warrior books is Brindleface. Sandstorm was their only kit.
Most likely not, if she is then it is not recorded in the warriors series.
On Leafpool's side is Firestar and Sandstorm, and on Crowfeather's side is Ashfoot and an unknown tom.
Her grandmother is Swiftbreeze, and her grandfather is Adderfang.
It's the epilogue (pg.508-510) of Firestar's quest.
In the epilogue of Firestar's Quest is when she has her kits.
No, Sandstorm and Scourge are not mates. Sandstorm is a ThunderClan cat from the Warriors series by Erin Hunter, while Scourge is a former leader of BloodClan and a antagonist in the same series. Their interaction is as adversaries, not mates.
Erin Hunter herself has said that Brindleface is Sandstorm's mother
The cat on the cover of "Rising Storm" by Erin Hunter is Fireheart, the main character of the Warriors series. He is depicted standing on a ledge, looking out over the ThunderClan territory.
Firestar began to develop feelings for Sandstorm during the course of their adventures together in the original "Warriors" series. Their relationship deepened as they faced various challenges and shared important moments, eventually culminating in them becoming mates.