Millie, like all cats, will eventually die, but she doesn't die of greencough in Long Shadows.
It is not clear which specific character named Millie you are referring to. Could you please provide more context?
it has not yet been revealed. but Millie is the mother of graystripes,kits,briarkit, blossomkit,and bumblekit
She hasn't died.
Millie has not died yet.
Millie Jeffrey died in 2004.
Millie Peacock died in 1948.
Millie Donay died on September 7, 2001.
Millie Deegan died on 2002-07-21.
Millie DeLeon died on 1922-08-06.
Millie Gusse died on March 21, 2001.
Thomas Millie Dow died in 1919.
Millie Schottland died on August 6, 1975, in Sherman Oaks, California, USA.
Millie Ketcheshawno died on December 11, 2000, in Oklahoma City, Oklahoma, USA.
Millie didn't die! And I hope she don't! Graystripe has already lost Silverstream and Millie is my favorite warrior!
1 mermaid
Yes, Millie dies in the Warrior Cats series. She passes away from old age, peacefully surrounded by her loved ones.