Michael O'Neill is Professor of English at Durham University, UK. His books include The Human Mind's Imaginings: Conflict and Achievement in Shelley's Poetry (1989) and, as co-editor, The Oxford Handbook of Percy Bysshe Shelley (2013), as well as three volumes of poetry, the last of which was Gangs of Shadow (2014). Mark Sandy is Reader in English Studies at Durham University, UK. He is author of Romanticism, Memory, and Mourning (2013) and Poetics of Self and Form in Keats and Shelley: Nietzschean Subjectivity and Genre (2005). Sarah Wootton is Senior Lecturer in English Studies at Durham University, UK. She has published widely on nineteenth-century literature and the visual arts, and is the author of Consuming Keats: Nineteenth-Century Representations in Art and Literature (2006) and Byronic Heroes in Nineteenth-Century Women's Writing and Screen Adaptation (2016).