Rock tells the three that they did not live long enough to learn about their Clanmates, so he will answer their questions about the cats they left behind.

There are also stories about a few cats from the Tribe of Rushing Water, SkyClan, and BloodClan in addition to some loners and kittypets.

Although Rock, as the narrator, claims neutrality, the book does not treat each Clan equally, devoting more space to ThunderClan cats.

The Clans and cats described in the book are as follows: The book also contains four maps (forest illustration, forest diagram, lake illustration, lake diagram) and an excerpt from Eclipse.

They show these characters to be exciting, vibrant, and unique, and will interest new readers much more than the tone-heavy, mysterious musings of the narrator".