She had fallen asleep with her head on his arm, the clockwork angel, still around her throat, resting against his shoulder just to the left of his collarbone. As she moved away, the clockwork angel slipped free and she saw to her surprise that where it had lain against his skin it had left a mark behind, no bigger than a shilling, in the shape of a pale white star.
The Infernal Devices: Clockwork Angel; Clockwork Prince; Clockwork Princess (ed. Simon and Schuster, 2013) - ISBN: 9781442483989