A mysterious prophecy has been foretold--an omen that will change the warrior Clans forever--but in order to pave the path, three young cats must delve deeply into their Clan's past.

After the sharp-eyed Jay and the roaring Lion, peace will come on Dove's gentle wing. Three ThunderClan cats, Jayfeather, Lionblaze, and Dovepaw, are prophesied to hold the power of the stars in their paws. Now they must work together to unravel the meaning behind the ancient words of the prophecy. As Jayfeather tackles his new responsibilities as the Clan's sole medicine cat and Lionblaze trains his apprentice in the ways of the warrior cats,

Dovepaw hones her own unique ability and tries to use it for the good of ThunderClan. But the dark shadows that have preyed on the Clan for many moons still lurk just beyond the forest. Soon a mysterious visitor will walk in one cat's dreams, whispering promises of greatness, with results that will change the future of ThunderClan in ways that no cat could have foreseen.

After the sharp-eyed Jay and the roaring Lion, peace will come on Dove's gentle wing. The deadly battle between ThunderClan and ShadowClan is over, but the aftermath still echoes around all four Clans. As Dovepaw grapples with the knowledge that there are realms—and cats—her senses cannot reach, Jayfeather and Lionblaze are determined to figure out how StarClan could have allowed this fight to happen.

Jayfeather soon finds the answer in the darkest of places, and he and Lionblaze prepare to do whatever they can to staunch the flow of evil into ThunderClan. The ties that bind the Clans are slowly breaking in the face of the greatest threat that the warriors—and the warrior code—have ever known.

As leaf-bare closes its grip upon the territories, Jayfeather, Lionblaze, and Dovepaw realize just how close the battle is, and how far they are from being able to succeed. And before the prey can run again, one more cat will be lost to the fight.

The end of the stars draws near. Three must become four to battle the darkness that lasts forever. . . . The dark forces that have driven a rift between the four warrior Clans are growing stronger. Jayfeather, Lionblaze, and Dovepaw now know that unless they can unravel the true meaning behind the prophecy that binds them, the warrior code could be destroyed forever.

While Lionblaze remains focused on protecting ThunderClan from another deadly battle, Jayfeather receives a desperate plea for help from the Tribe of Rushing Water. He must travel to the mountains in search of answers that link the Clans to the Tribe in ways no cat could have imagined. But with the summons comes an ominous warning that suggests the power of the stars may not be enough to save the Clans.

The end of the stars draws near. Three must become four to battle the darkness that lasts forever. . . . With a divided StarClan driving a treacherous rift between the four warrior Clans, the spirits of the Dark Forest are gaining strength. Ivypool’s role as a spy is becoming more dangerous with each passing day.

Dovewing is haunted by nightmares about the mountains and finds herself paralyzed by fear of what lies ahead. Then an outsider appears in ThunderClan’s midst, spreading discord and pushing the Clans further apart. As tensions mount and Clanmates turn against one another, the warrior cats will be forced to choose whose word they can trust—before it’s too late.

A conclusion to the Omen of the Stars story arc finds Jayfeather, Dovewing, and Lionblaze enlisting the aid of Firestar, ThunderClan, and StarClan, as they struggle to unravel a mysterious prophecy before a final Dark Forest battle.