The Infernal Devices: Clockwork Angel by Cassandra Clare

Clockwork Angel is the first book in The Infernal Devices trilogy by Cassandra Clare, published in 2010 by Margaret K. McElderry Books. It is a prequel series to Clare's bestselling Mortal Instruments series, set in Victorian London and exploring the origins of the Shadowhunter world. The book became a New York Times bestseller and is highly valued by young adult fantasy readers and collectors of the Shadowhunter Chronicles. First edition hardcovers, particularly those in excellent condition or signed by the author, are sought after by fans and collectors of contemporary young adult literature.