- The first book, which introduced us to the Warriors world and the main character Firestar, was written by Kate Cary (out of the several authors that make up Erin Hunter). The last book in the main series, The Last Hope, which ends with Firestar's death, was, fittingly, given to Kate to write.
- The Power of Three story arc (which covers the two series Power of Three and Omen of the Stars) begins with the characters learning the prophecy "There will be three, kin of your kin, who hold the power of the stars in their paws." The final lines of the last book echo this, and the series in general:
There will be three cats, kin of your kin, with the power of the stars in their paws. They will find a fourth, and the battle between light and dark will be won. A new leader will rise from the shadows of his death, and the Clans will survive beyond the memories of his memories. That is how it has always been, and how it always will be.