Squirrelstar is a dark ginger she-cat with one white paw, a squirrel-like, bushy tail, and green eyes. Squirrelstar is the current leader of ThunderClan in the lake territories. She was born as Squirrelkit to Firestar and Sandstorm alongside Leafkit. As an apprentice, Squirrelpaw was mentored by Dustpelt. While her sister was calm and patient, Squirrelpaw was independent, stubborn, brave, and fiercely passionate, which often got her into trouble. She followed Brambleclaw on the journey to the sun-drown place, where the two grew close. When the Clans arrived at their new home by the lake, she was given her warrior name, Squirrelflight. She became mates with Brambleclaw, much to her close friend Ashfur's dismay. Unbeknownst to the rest of the Clan, Leafpool gave birth to Crowfeather's kits, and Squirrelflight protected her sister by raising the kits as her own. She and Brambleclaw raised Lionblaze, Jayfeather, and Hollyleaf; however, after the truth was revealed, Brambleclaw was furious about being lied to, and the two broke up. Squirrelflight also mentored Foxleap and Rosepetal. After the battle against the Dark Forest, Brambleclaw became leader and appointed Squirrelflight as his deputy as a display of forgiveness. Following the Great Storm, Squirrelflight mentored Stormcloud, a former kittypet. She and Bramblestar eventually had kits of their own: Alderkit, Sparkkit, Juniperkit, and Dandelionkit, though only Alderheart and Sparkpelt survived to adulthood. Squirrelflight eventually came at odds with Bramblestar when she defended the Sisters from ThunderClan and was almost killed by a rockslide. StarClan allowed her body to heal, but Leafpool died. After Bramblestar's unexpected death, Squirrelflight took over his duties but she relinquished them when he was revived. When she discovered Bramblestar was being possessed, she was exiled by the false leader and took refuge in ShadowClan. After deposing the impostor, Squirrelflight rejoined ThunderClan and became its acting leader, which drew conflict from the Clan as she did not have nine lives. She revealed Ashfur as the identity of the impostor, and struggled to keep her Clan together, advocating for the return of Bramblestar's spirit. However, she somberly accepted his permanent disappearance, but Ashfur kidnapped Squirrelflight through the Moonpool, bringing her to the Place of No Stars, where she learned that Ashfur planned to destroy the Clans in the name of his love for her. With the help of Rootspring and Shadowsight, Squirrelflight and Bramblestar returned to the living world, and Ashfur was eventually defeated. Squirrelflight continued to serve as Bramblestar's deputy until he decided to step down from leadership, rising as Squirrelstar with Ivypool as her deputy.