Infernal devices 1: clockwork angel (Walker Books Ltd)

Tessa is soon caught in a dangerous love triangle where a wrong decision could prove fatal. She will need all her strength to save her brother and stay alive as she learns the chilling truth of what really lurks on London's streets after dark. Discover more about the mysterious and sexy Shadowhunters in this thrilling prequel trilogy to the bestselling "Mortal Instruments" sequence. It is supported by a major marketing and publicity campaign. "The Mortal Instruments" series has been translated into 19 languages and has appeared on bestseller lists in the US, Germany, Ireland, Australia, New Zealand and Canada.