Brambleclaw became deputy in the Sixth book of the second series.
Brambleclaw became deputy in the book "Moonrise" in the Warriors series by Erin Hunter.
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Brambleclaw becomes deputy of ThunderClan in the Warriors series book "Moonrise," which is the second book in the New Prophecy arc.
Squirrelflight's mate after Brambleclaw is Leafpool's son, Lionblaze. They become mates in the book series "Warriors."
Actually, he does become leader in the last book because Firestar dies.
Yes, Brambleclaw becomes leader of ThunderClan in "Fading Echoes." Squirrelflight reacts with mixed feelings, as she is proud of Brambleclaw but also worried about their relationship changing. Leafpool is supportive of Brambleclaw, but also has concerns about how his leadership may affect the clan.
Squirrelflight and Brambleclaw become a couple in the book "Sunset," which is the sixth book in the "Warriors: The New Prophecy" series by Erin Hunter. Their relationship continues to develop throughout the series.
Brambleclaw does not die in the Warriors book series. He plays a prominent role in several of the books, including "The New Prophecy" and "Power of Three."
Brambleclaw and Squirrelflight fall in love in the "Warriors: The New Prophecy" series. Their relationship develops throughout the books in this series, especially in the second book, "Moonrise," where their feelings for each other become more evident.
Brambleclaw and Squirrelflight fight in Starlight, through Twilight and nearly to the end of Sunset.
We don't know yet. And on a fan chat, they say that Brambleclaw will not become the next leader of Thunderclan. squirrelflight
Not during the current series--right now, in the books, Firestar is leader, and Brambleclaw is deputy, meaning Brambleclaw will be Firestar's successor. But, when Brambleclaw becomes leader there is a chance Brackenfur (Brackenpaw) could become leader.