Eighteen-year-old Liobhan is a powerful singer and an expert whistle player. Her brother has a voice to melt the hardest heart, and is a rare talent on the harp. But Liobhan's burning ambition is to join the elite warrior band on Swan Island. She and her brother train there to compete for places, and find themselves joining a mission while still candidates. Their unusual blend of skills makes them ideal for this particular job, which requires going undercover as traveling minstrels. For Swan Island trains both warriors and spies.

Lovely Sorcha is the seventh child and only daughter of Lord Colum of Sevenwaters. Bereft of a mother, she is comforted by her six brothers who love and protect her. Sorcha is the light in their lives and they are determined that she know only contentment. But Sorcha's joy is shattered when her father is bewitched by his new wife, an evil enchantress who binds her brothers with a terrible spell, a spell which only Sorcha can lift - by staying silent.

One bitter Midwinter's Eve, everything changes when Bridei finds a child on their doorstep - a child abandoned by the Fair Folk. It is the height of ill fortune to have truck with the Fair Folk, and all in the area counsel the babe's death. But Bridei sees an old and precious magic at work and, heedless of the danger, fights to save the child. Broichan is wary but relents, for Bridei must grow to be his own man and make his own decisions.

Ever since she was cursed by a faerie, Theodora Ettings has had no sense of fear or embarrassment—an unfortunate condition that leaves her prone to accidental scandal. Dora hopes to be a quiet, sensible wallflower during the London Season—but when Elias Wilder, the strange, handsome, and utterly ill-mannered Lord Sorcier, discovers her condition, she is instead drawn into peculiar and dangerous faerie affairs.

Cecilia Bassingwaite is the ideal Victorian lady. She's also a thief. Like the other members of the Wisteria Society crime sorority, she flies around England drinking tea, blackmailing friends, and acquiring treasure by interesting means. Sure, she has a dark and traumatic past and an overbearing aunt, but all things considered, it's a pleasant existence. Until the men show up.