The young warrior and bard Liobhan has lost her brother to the Otherworld. Even more determined to gain a place as an elite fighter, she returns to Swan Island to continue her training. But Liobhan is devastated when her comrade Dau is injured and loses his sight in their final display bout. Blamed by Dau's family for the accident, she agrees to go to Dau's home as a bond servant for the span of one year. There, she soon learns that Oakhill is a place of dark secrets. The vicious Crow Folk still threaten both worlds. And Dau, battling the demon of despair, is not an easy man to help.

Sixteen-year-old Neryn is alone in the land of Alban, where the oppressive king has ordered anyone with magical strengths captured and brought before him. Eager to hide her own canny skill - a uniquely powerful ability to communicate with the fairy-like Good Folk - Neryn sets out for the legendary Shadowfell, a home and training ground for a secret rebel group determined to overthrow the evil King Keldec.

Neryn has finally found the rebel group at Shadowfell, and now her task is to seek out the elusive Guardians, vital to her training as a Caller. These four powerful beings have been increasingly at odds with human kind, and Neryn must prove her worth to them. She desperately needs their help to use her gift without compromising herself or the cause of overthrowing the evil King Keldec.

Just one year ago, Neryn had nothing but a canny skill she barely understood and a faint dream that the legendary rebel base of Shadowfell might be real. Now, she is the rebels' secret weapon and their greatest hope for survival in the fast-approaching ambush of King Keldec at Summerfort. The fate of Alban itself is in her hands. But confidence is stretching thinner by the day when word of another Caller reaches the rebels: a Caller at Keldec's side with all of Neryn's power and none of her benevolence or hard-earned control.

Healer Blackthorn knows all too well the rules of her bond to the fey: seek no vengeance, help any who ask, do only good. But after the recent ordeal she and her companion, Grim, have suffered, she knows she cannot let go of her quest to bring justice to the man who ruined her life.

Disillusioned healer Blackthorn and her companion, Grim, have settled in Dalriada to wait out the seven years of Blackthorn's bond to her fey mentor, hoping to avoid any dire challenges. But trouble has a way of seeking out Blackthorn and Grim. Lady Geiléis, a noblewoman from the northern border, has asked for the prince of Dalriada's help in expelling a howling creature from an old tower on her land - one surrounded by an impenetrable hedge of thorns.

Hulde is a queen’s daughter and lives in a palace. But her life is lonely. Growing up atop the glass mountain, she knows only her violent and autocratic mother and a household of terrified servants. Then a white bear named Rune comes to visit, and Hulde learns what kindness is. But the queen has a plan for Hulde. When she turns 16, she will wed the most beautiful man in all the world. Hulde has never met her intended husband, and her mother refuses to explain the arrangement.

In exchange for help escaping her long and wrongful imprisonment, embittered magical healer Blackthorn has vowed to set aside her bid for vengeance against the man who destroyed all that she once held dear. Followed by a former prison mate, a silent hulk of a man named Grim, she travels north to Dalriada. There she'll live on the fringe of a mysterious forest, duty bound for seven years to assist anyone who asks for her help. Oran, crown prince of Dalriada, has waited anxiously for the arrival of his future bride, Lady Flidais.

Maeve, daughter of Lord Sean of Sevenwaters, was badly burned as a child and carries the legacy of that fire in her crippled hands. After ten years, she’s returning home, having grown into a courageous, forthright woman with a special gift for gentling difficult animals. But while her body’s scars have healed, her spirit remains fragile, fearing the shadows of her past.

Prior to making her final pledge as a druid, the young seer Sibeal visits the island of Inis Eala, where the Sight leads her to Felix, a survivor of a Norse shipwreck who has no memory of his past. As the island's healers struggle to keep Felix alive, he and Sibeal form a natural bond. But Sibeal's vocation is her true calling, and she must choose between the two things that tug at her soul - her spirituality and a chance at love....