Assassins, A Fragment of a Romance (1814), an unfinished novella about a morality-driven sect of zealots determined to kill the tyrants and oppressive dictators in the world, The Coliseum (1817), Una Favola (A Fable), written in Italian in 1819, and The Elysian Fields: A Lucianic Fragment (1818), which presents fictional fantasy with political commentary. The chapbooks Wolfstein; or, The Mysterious Bandit (1822) and Wolfstein, the Murderer; or, The Secrets of a Robber's Cave (1830) were condensed versions of St. Irvyne. A True Story was attributed to him from the 1820 Indicator by Leigh Hunt, which is similar to the poem The Sunset (1816). Shelley also wrote the preface and contributed at least 4,000–5,000 words to the Gothic novel Frankenstein (1818) by his wife Mary Shelley. There is a continuing debate about how much he wrote of the novel. In 2008, he was given co-writer or collaborator status. References Sources Lauritsen, John. The Man Who Wrote Frankenstein. Dorchester, MA: Pagan Press, 2007. de Hart, Scott D. Shelly Unbound: Discovering Frankenstein's True Creator. Port Townsend, WA, U.S.: Feral House, 2013. Also as Shelley Unbound: Uncovering Frankenstein's True Creator. Chesser, Eustace. Shelley and Zastrozzi: Self-Revelation of a Neurotic. London: Gregg/Archive, 1965. Eustace Chesser: "The story itself had the incoherence of a dream because that is just what it was – a day dream in which our conscious conflicts were worked out in disguise." Shelley, Percy Bysshe. Zastrozzi. With a Foreword by Germaine Greer. London: Hesperus Press, 2002. Germaine Greer: "The whole novel treats a love that still dare not speak its name, the love of a juvenile for adult women." Shelley, Percy Bysshe. Zastrozzi: A Romance; St. Irvyne, or, The Rosicrucian: A Romance. Edited, with an Introduction and Notes by Stepehen C. Behrendt. Peterborough, Ont., Canada: Broadview Press, 2002. Shelley, Percy Bysshe. Zastrozzi and St. Irvyne. (The World's Classics). Oxford: Oxford University Press, 1986. Shelley, Percy Bysshe. The Prose Works of Percy Bysshe Shelley. Edited by Harry Buxton Forman, 8 volumes. London: Reeves and Turner, 1880. Rajan, Tilottama. "Promethean Narrative: Overdetermined Form in Shelley's Gothic Fiction." Shelley: Poet and Legislator of the World, ed. Betty T. Bennett and Stuart Curran (Baltimore: Johns Hopkins University Press, 1995), 240–52, 308–9. Zimansky, Curt R. (1981). "Zastrozzi and The Bravo of Venice: Another Shelley Borrowing." Keats-Shelley Journal, 30, pp. 15–17. Frosch, Thomas R. Shelley and the Romantic Imagination: A Psychological Study. University of Delaware Press, 2007. Bridgwater,