Clockwork Angel is the first book in Cassandra Clare's The Infernal Devices trilogy. It is a prequel to The Mortal Instruments series. The book is about Tessa Gray, who receives a ticket to travel to London from her brother Nathaniel after her aunt dies. Tessa crosses the ocean to find her brother during the reign of Queen Victoria. In London's Downworld, she encounters vampires, warlocks, and other supernatural beings Absolutely loved this series! Excellent condition. Smoke free, pet free home. :)