The Forgotten Warrior

When an outsider appears in the ThunderClan's midst, it drives the Clans further apart and as tension mounts they must decide who they can trust before it is too late.

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**Books in this arc**

1. [The Fourth Apprentice][1]
2. [Fading Echoes][2]
3. [Night Whispers][3]
4. [Sign of the Moon][4]
5. The Forgotten Warrior
6. [The Last Hope][6]

[1]: https://openlibrary.org/works/OL14906957W
[2]: https://openlibrary.org/works/OL5714273W
[3]: https://openlibrary.org/works/OL15496241W
[4]: https://openlibrary.org/works/OL17455355W
[6]: https://openlibrary.org/works/OL16529186W

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**Arcs in this series**

1. [The Prophecies Begin][a]
2. [The New Prophecy][b]
3. [The Power of Three][c]
4. Omen of the Stars
5. [A Vision of Shadows][e]
6. [The Broken Code][f]

[a]: https://openlibrary.org/books/OL9228970M/INTO
[b]: https://openlibrary.org/books/OL9235572M/Midnight_(Warriors_The_New_Prophecy_Book_1)
[c]: https://openlibrary.org/books/OL7283723M/The_Sight_(Warriors_Power_of_Three_Book_1)
[d]: https://openlibrary.org/books/OL24084711M/Warriors_Omen_of_the_Stars_1
[e]: https://openlibrary.org/books/OL30465630M/The_Apprentice's_Quest
[f]: https://openlibrary.org/books/OL27958224M/Warriors_The_Broken_Code_1