On Chain of Gold:

For teenagers who might like to lose themselves in an Edwardian London overrun with demons [...] this story offers glamour, romance and peril.
Honestly anything by Cassandra is always the top of my list.
The Shadowhunters must catch a killer in Edwardian London in this dangerous and romantic sequel to the #1 New York Times bestselling novel Chain of Gold, from New York Times and USA TODAY bestselling author Cassandra Clare. Chain of Iron is a Shadowhunters novel.

Cordelia Carstairs seems to have everything she ever wanted. She’s engaged to marry James Herondale, the boy she has loved since childhood. She has a new life in London with her best friend Lucie Herondale and James’s charming companions, the Merry Thieves. She is about to be reunited with her beloved father. And she bears the sword Cortana, a legendary hero’s blade.

But the truth is far grimmer. James and Cordelia’s marriage is a lie, arranged to save Cordelia’s reputation. James is in love with the mysterious Grace Blackthorn whose brother, Jesse, died years ago in a terrible accident. Cortana burns Cordelia’s hand when she touches it, while her father has grown bitter and angry. And a serial murderer is targeting the Shadowhunters of London, killing under cover of darkness, then vanishing without a trace.

Together with the Merry Thieves, Cordelia, James and Lucie must follow the trail of the knife-wielding killer through the city’s most dangerous streets. All the while, each is keeping a shocking secret: Lucie, that she plans to raise Jesse from the dead; Cordelia, that she has sworn a dangerous oath of loyalty to a mysterious power; and James, that he is being drawn further each night into the dark web of his grandfather, the arch-demon Belial. And that he himself may be the killer they seek.
Cassandra Clare is the #1 New York Times bestselling author of Chain of Gold as well as the internationally bestselling Dark Artifices trilogy, Mortal Instruments series, and Infernal Devices trilogy. She is the co-author of the Eldest Curses series with Wesley Chu; The Shadowhunters's Codex with Joshua Lewis; The Bane Chronicles with Sarah Rees Brennan and Maureen Johnson; Tales from the Shadowhunter Academy with Sarah Rees Brennan, Maureen Johnson, and Robin Wasserman; and Ghosts of the Shadow Market with Sarah Rees Brennan, Maureen Johnson, Kelly Link and Robin Wasserman. Her books have more than 50 million copies in print worldwide and have been translated into more than 35 languages and made into a feature film and a TV show.