Mouseheart is a black, brown and white tortoiseshell she-cat with green eyes.
- She is born to Cloudpoppy, out deep in ThunderClan Territory, with her sister, Peachkit. She was carried into camp by Lightfire who is her foster mother. She doesn't know that Cloudpoppy is her real mother, and neither does her sister. Only Cloudpoppy and Lightfire know the truth about them, and not even Graymist, her father, knows.
- She is seen riding Firestar.
- She is later given her apprentice name, Mousepaw.
- After she and her sister recieve their warrior names, Mouseheart and Peachblossom.
- She is very upset when she finds out that Cloudpoppy is her mother.
- She dies of unknown causes.
- Graymist - Living
- Peachblossom - Deceased, member of StarClan.
- Fuzzypelt - Deceased, member of StarClan.
- Lightfire - Deceased, member of StarClan
- Riverfall - Deceased, member of StarClan.
Cloudpoppy------Graymist | ------------------------ | | Blazepelt----Peachblossom Mouseheart | ----------------------------- | | | Willowshade Streamtail Daisypetal