|"They all looked thin and exhausted, but their eyes glittered with hostility and their fur was bristling as if they would leap into battle..."|
|— Narrator describing the RiverClan patrol in The Fourth Apprentice, page 20|
|Living:||Eclipse, Long Shadows, Sunrise, The Fourth Apprentice, Hollyleaf's Story|
Otterheart is a dark brown she-cat.
In the Power of Three Arc
- Otterheart does not formally appear in Long Shadows but is listed in the allegiances. She is now a mentor to Sneezepaw.
In the Omen of the Stars Arc
- Although she is not listed in the allegiances, Otterheart appears with her apprentice, Sneezepaw, and her Clanmates, Graymist and Reedwhisker, when a ThunderClan patrol comes to get water from the rapidly shrinking lake. The four RiverClan cats cluster together, waiting for the ThunderClan patrol to draw closer to the water, carefully guarding the fish. She is noted to look wary and hostile, as well as extremely tired and scrawny, but still ready to leap into battle.
- When Berrynose angrily tells the patrol that ThunderClan will drink the water whether they like it or not, all of the RiverClan cats unsheathe their claws. Otterheart takes a step forward, hissing that the lake belongs to RiverClan. As the ThunderClan patrol nears the water's edge, Otterheart and her patrol watch their every move with hostile gazes.
In the Short Stories and Plays
- Pouncetail and Otterheart are found by Firestar when their patrol was split up when in ShadowClan territory. To answer Firestar's question of there being more cats, Pouncetail reveals Otterheart slumped on the cold earth, barely breathing and with a faint heartbeat. Behind Firestar, Pouncetail confirmes the cat's identity to be Otterheart and asks if she is okay. Firestar responds that she's alive, but that she needs a medicine cat.
- As Firestar tries to coax Otterheart to her feet by pushing her flank up, Otterheart stirs with a faint moan, a small trickle of blood coming from her mouth. Firestar notices the feel of her bones through her ragged pelt, and her unkempt fur, thinking that Otterheart was more dead than alive even before stepping onto ShadowClan territory. Coming to the conclusion that Otterheart did not have the strength to stand up, let alone walk, Firestar picks her up by the scruff, comparing her weight to that of a kit's.
- While the ShadowClan patrol challenges Firestar, he drags Otterheart over to the other side of the bracken, with the thought that she is no more than skin and bones, her legs splayed awkwardly and tripping him. Once on the opposite side of the bracken, Firestar sets down Otterheart with Pouncetail next to her, claiming them as ThunderClan's prisoners. Once the ShadowClan patrol leaves, Firestar starts up the task of getting the two RiverClan cats back to the hollow to see Leafpool.
- At the Gathering Firestar organizes, it is noted that Pouncetail and Otterheart have returned to their Clan. While Otterheart is still limping, Leafpool is credited for managing to keep her wounds from getting infected. When the select cats from the Clans start to get at each other's throat, Otterheart stares up at the clear, sparkling sky, claiming that StarClan has come.
- Otterheart votes in favor of Firestar to temporarily lead the Clans through the difficult leaf-bare.
In the Novellas
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- "The lake belongs to us."
- —Otterheart to the ThunderClan patrol The Fourth Apprentice, page 20
- "But look! StarClan has come!"
- —Otterheart staring up at Silverpelt The Clans Decide, page 8