When crusading lawyer Vikram Pandey sets out in search of a missing youth, his investigations take him to Holywell Street, London's most notorious address. He expects to find a disgraceful array of sordid bookshops. He doesn't expect one of them to be run by the long-lost friend whose disappearance and presumed death he's been mourning for 13 years. Gil Lawless became a Holywell Street bookseller for his own reasons, and he's damned if he's going to apologize or listen to moralizing from anyone.

Will Darling came back from the Great War with a few scars, a lot of medals, and no idea what to do next. Inheriting his uncle's chaotic secondhand bookshop is a blessing...until strange visitors start making threats. First a criminal gang, then the War Office, both telling Will to give them the information they want, or else. Will has no idea what that information is, and nobody to turn to, until Kim Secretan - charming, cultured, oddly attractive - steps in to offer help. As Kim and Will try to find answers and outrun trouble, mutual desire grows along with the danger.

Robin Loxleigh and his sister Marianne are the hit of the Season, so attractive and delightful that nobody looks behind their pretty faces. Until Robin sets his sights on Sir John Hartlebury's heiress niece. The notoriously graceless baronet isn't impressed by good looks, or fooled by false charm. He's sure Robin is a liar - a fortune hunter, a card sharp, and a heartless, greedy fraud - and he'll protect his niece, whatever it takes.

Luc O'Donnell is tangentially - and reluctantly - famous. His rock-star parents split when he was young, and the father he's never met spent the next 20 years cruising in and out of rehab. Now that his dad's making a comeback, Luc's back in the public eye, and one compromising photo is enough to ruin everything. To clean up his image, Luc has to find a nice normal relationship...and Oliver Blackwood is as nice and normal as they come. He's a barrister, an ethical vegetarian, and someone who has never inspired a moment of scandal in his life. He’s perfect boyfriend material.

Jem begins to track down the people who were there the night Toby died – a close circle of friends once known as the ‘Seven Wonders’ for their charm and talent – only to find them as tormented and broken as himself. All of them knew and loved Toby at Oxford. Could one of them really be his killer? As Jem grows closer to uncovering what happened that night, his pursuer grows bolder, making increasingly terrifying attempts to silence him for good. Will exposing Toby's killer put to rest the shadows that have darkened Jem’s life for so long? Or will the gruesome truth only put him in more danger?