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.

The Clans are in turmoil. ShadowClan has turned its back on StarClan and pledged to follow the dark predictions of Sol, the strange cat who foretold the solar eclipse. But not all the cats have lost faith in their warrior ancestors...

Jaypaw is convinced that StarClan still holds an important place in the warrior code, and his search for answers leads him far back into the past, farther back than even StarClan can remember. Lionblaze, tortured by violent dreams and bloody visions, wishes he had never been prophesied to be one of the three, but to turn his back on his littermates would be the ultimate betrayal. And Hollyleaf is terrified that once the Clans lose their faith, the warrior code will fall apart. She's willing to fight tooth and nail to preserve it—whatever the cost.

And when murder stalks into the heart of ThunderClan, the cats realize that the darkest shadows don't always lie outside the territory.

Lonely and out of place in the 21st century, Olivia Keller finds her escape in books, especially romances set in the distant past. When a series of unexpected happenings places her in the very time she's always dreamed of, she is struck with the old wisdom to be careful what you wish for.

Cast into a world she could not have understood if she'd read a thousand books, fantasies are abandoned and survival remains the only goal. It soon becomes apparent, however, that survival is just one of the many challenges she'll face as she experiences the ancient world through the members of the Deer Clan.

She is reviled by the sardonic clansman, Trabor, who has convinced members of the clan that the solution to their misfortune is the conquer and pillaging of neighboring clans. Befriended by Jalen, hunter of the Deer Clan, and its eldest member, Yani, her arrival is seen as the fulfillment of an ancient prophecy to unite the Clan with its deer brothers.

To others, she is an outsider, cursing the clan and dividing its members between those who choose Trabor's path of war and those who cling to reunification and a return of prosperity.

As the hailed Caller of the Deer, Olivia bears witness to Earth's mystical past, as the realization of her true mission is revealed, and she is granted the extraordinary power to change the course of Earth's history.