Contents Acknowledgements Figures and Table Abbreviations 1 Introduction: These Are the Voyages. 1.1 The Old Irish 'Genre System', Otherworlds, and Utopias 1.2 The Tropological Mode 1.3 The Intertextual Matrix 1.4 Structure and Route2 C. S. Lewis, the Dawn Treader , and St Brendan 2.

1 C. S. Lewis's Dialogic Imagination 2.2 The Dawn Treader and Fourfold Interpretation3 Umberto Eco, 'Reality' and Prester John 3.1 Creating and Following the Footsteps of Saint Brendan 3.2 Umberto Eco's Construction of Space 3.3 Making the Incredulous Reader Believe in the Fantastic4 Jonathan Swift, the Echtraand the ImmramTradition 4.1 Swift and Allegorical Reading 4.

2 Swift's Real-World Framework 4.3 Gulliver's Islands and the Problems of Utopia5 Star Trekas Immram, and 'Space, the Final Frontier.' 5.1 Planets as Islands 5.2 'Optimism, Captain!' Rowing-about with Cheer 5.3 These are the Immramaof the Starship Echtra6 Stargate as an EchtraNarrative 6.1 Stargate's Planetary Otherworlds 6.2 Stargate Ustopias 6.

3 Postcolonial Echtrai7 Conclusion Bibliography Index.