John Christopher ; simplified by A.G. Eyre. John Elliot ; simplified by A.G. Eyre. John Christopher ; abridged and simplified by A.G. Eyre. John Wain ; abridged by & simplified by S.H. Burten. B. Stoker ; simplified by J. Turvey. John Buchan ; abridged and simplified by G.F. Wear. Annemarie Selinko ; abridged and simplified by A.G. Eyre. A. Hailey ; simplified by N. Wymer. J. Verne ; simplified by M. West. J.M. Falkner ; simplified by M. West.