Once and Future Hearts Books in Order

Lynette guards the secret of an unborn Merlin while serving Princess Vivian. Her attraction to Cadfael, a commander driven by vengeance against the Saxons, places their personal hopes in conflict with dangerous loyalties and Britain's uncertain future.

Drought threatens Lesser Britain as King Arawn takes a fifth wife after four others have died. Ilsa faces a prophecy about the child who could save the land while rival leaders prepare to challenge Vortigern across the sea.

Anwen, companion to Lady Igraine, is assigned the help of Steffan, a warrior blinded in battle. Their developing bond unfolds amid Uther's dangerous obsession with Igraine, drawing them into schemes that threaten Britain's fragile peace.

With Arthur's forces weakened by winter and Saxon victories, Bedivere clings to duty and tradition. His hostility toward half-Saxon Cara complicates an alliance they must forge as Britain's survival approaches its test at Mount Badon.

Mair wants to fight for Arthur alongside her family, but King Alun offers her a crown abroad. His brother Rawn shares her warrior ambitions, drawing her into a romantic and political struggle as Arthur advances toward kingship.

Rhiannon's first battle against the Saxons brings her together with Idris, a warrior serving King Lot. Their attachment crosses opposing loyalties, and long-buried family secrets threaten to turn a private romance into a wider political rupture.

A political marriage joins restless Gawain to Tegan, who remembers a painful past he has forgotten. When Guenivere disappears, Arthur sends Gawain and Lancelot to recover her, placing the troubled couple amid a dangerous royal crisis.

Sagramore's friendship with Tristan draws him toward a forbidden royal affair that threatens the peace of Cornwall. Anwen is attracted to him but fears his wildness, leaving her to decide whether she can reach him before disaster.

With Dyfed's throne vacant, a mage misrepresents an ancient ritual to exploit its hopeful participants. Catrin recognizes the deception, but exposing it alongside soldier Marcus Jorath could bring accusations of witchcraft and treason during a dangerous succession.

Saraid's quiet life is disrupted when Owain arrives demanding justice for Morguase's murder. Arthur summons the parties to Camelot, drawing Saraid and Owain into an emotional alliance as family grievances threaten the stability of his court.

Lynette and Prince Kahedin arrive seeking Arthur's help against the Saxons and find a court divided. Their growing attraction faces royal obligations while Guenivere's treason charge makes finding the exiled Lancelot a matter of urgent survival.

After fleeing a family betrayal involving the Saxons, Deryn struggles to earn trust at Camelot. Her bond with Cadfael grows amid war and suspicion, forcing both to weigh personal loyalty against the demands of defending Arthur's realm.

Summoned from exile as Arthur's kingdom approaches its final crisis, Morfydd confronts the power she fears and the past she fled. Constantine, burdened by his place as heir, finds unexpected hope in their connection amid gathering war.