Anna’s aunt has always warned her of the dangers of magic. Its twists. Its knots. Its deadly consequences. Now Anna counts down the days to the ceremony that will bind her magic forever. Until she meets Effie and Attis. They open her eyes to a London she never knew existed. A shop that sells memories. A secret library where the librarian feeds off words. A club where revellers lose themselves in a haze of spells. But as she is swept deeper into this world, Anna begins to wonder if her aunt was right all along.

Lady Katarina Ashowan is used to getting into trouble, but her latest muddle takes the cake. A moment's weakness in her attraction to Eric Reyes, crown prince of Daxaria, has landed her in an unexpected marriage with the man . . . just as her father, Lord Finlay Ashowan, arrives in Troivack to check on his headstrong daughter. As if figuring out how to acclimate her father to her scandalous elopement isn't bad enough, there are rumors of dangerous magical plots afoot at court—with Kat seemingly at the center of them all.

Luke Taylor has been searching for his missing twin for months, but has begun to believe that his brother might be dead. With his hope in tatters, a tip off leads him to a remote tidal island in the North Sea. It’s further out than the famous Holy Island, and far stranger.

Orphaned as a young child, Mirin O'Malley has been brought up by her grandparents on their isolated, rambling estate Hob's Hallow. Long ago her family prospered due to a deal struck with the mer, the terrifying creatures who live in the depths of the sea: safety for their merchant ships in return for a child of each generation. But for many years the family have been unable to keep their side of the bargain and their fortunes have suffered as a result. When Mirin's grandfather dies, her grandmother puts in train a plan to restore their glory - but at the price of Mirin's freedom.

After a nearly fatal blow to the skull, traumatized private detective Ian Cameron is found dazed and confused on a muddy riverbank in Victorian London. Among his effects: a bloodstained business card bearing the name of a master wizard and a curious pocket watch that doesn’t seem to tell time. To retrieve his lost memories, Ian demands answers from Edwina and Mary Blackwood, sister witches with a murky past. But as their secret is slowly unveiled, a dangerous mystery emerges on the darkened streets of London.