How does thunderstar die?

Tallstar dies of a sickness while the Clans were on the journey to their new home, and he doesn't even get to see the new forest. He was an old cat. Wait, am I talking about another cat? I can't remember...

He died for BEING to old.REMEMBER. -Hawkfire123

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A few days after the Clans settle in their new home around the lake, Tallstar dies of old age. He was already weak from the journey made by the Clans. He dies appointing Onewhisker as the new deputy, making Onewhisker leader, becoming Onestar.

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Tallstar dies not to long before the clans separate into their different clans. He makes it a far way and gets to see some of the forest. But never got to see windclan territory. Right before he dies he changes his deputy into onewhisker later to be known as Onestar. Mudclaw soon after that becomes mad over this choice and trys to kill onestar,

Sorry i went overboard I'm just a tallstar freak xD