În acest roman Elwin Ransom, un filolog, călătorește pe planeta Marte și află că Pământul este exilat față de restul sistemului solar datorită naturii sale păcătoase și este cunoscut ca "planeta tăcută". Celelalte romane sunt: Perelandra (1943, publicată și sub denumirea Voyage to Venus), That Hideous Strength (1945) și un fragment publicat postum în 1977 sub titlul The Dark Tower.
Trilogia a fost inspirată și influențată de romanul lui David Lindsay din 1920, A Voyage to Arcturus[2]..
Spirits in Bondage (1919) ·Dymer (1926) ·Narrative Poems (1969) ·The Collected Poems of C. S. Lewis (1994)
Ficțiune
The Pilgrim's Regress (1933) ·The Screwtape Letters (1942) ·The Great Divorce (1945) ·Till We Have Faces (1956) ·Screwtape Proposes a Toast (1959) ·Letters to Malcolm: Chiefly on Prayer (1964) ·Boxen (1985)
The Allegory of Love (1936)·Rehabilitations and other essays (1939)·The Personal Heresy (1939)
Anii 1940
The Problem of Pain (1940)·A Preface to Paradise Lost (1942)·The Abolition of Man (1943)·Beyond Personality (1944)·Miracles (1947)·Arthurian Torso (1948)
Anii 1950
Mere Christianity (1952)·English Literature in the Sixteenth Century Excluding Drama (1954)·Major British Writers, Vol I (1954)·De Descriptione Temporum. An Inaugural Lecture (1955)·Surprised by Joy (1955)·Reflections on the Psalms (1958)
Anii 1960
The Four Loves (1960)·Studies in Words (1960)·An Experiment in Criticism (1961)·A Grief Observed (1961)·They Asked for a Paper: Papers and Addresses (1962)·Selections from Layamon's Brut (1963)·The Discarded Image (1964)·Studies in Medieval and Renaissance Literature (1966)·Of Other Worlds (1966)·Spenser's Images of Life (1967)·Letters to an American Lady (1967)·Christian Reflections (1967)·Selected Literary Essays (1969)
Anii 1970
God in the Dock (2 volumes) (1970-1971)
Anii 1980
The Business Of Heaven (1984)·Present Concerns (1986)
Anii 1990
All My Road Before Me: The Diary of C. S. Lewis 1922–27 (1993)
Anii 2000
Essay Collection: Literature, Philosophy and Short Stories (2000)·Essay Collection: Faith, Christianity and the Church (2000)·Collected Letters (Volume I: Family Letters 1905–1931 (2000)·Volume II: Books, Broadcasts and War 1931–1949 (2004)·Volume III: Narnia, Cambridge and Joy 1950–1963 (2007))