Identifying a source for this C S Lewis quote (reflecting St Augustine and St Paul)

There is a C. S. Lewis quote from *The Lion, the Witch, and the Wardrobe* that resembles a famous quote by St Augustine. Here is St. Augustine: > The very thing which is now called the Christian religion was with the ancients, and it was with the human race from its beginning to the time when Christ appeared in the flesh: From then on the true religion, which already existed, began to be called the Christian That quote comes from St. Augustine’s *Retractations* I.12.3. There is scriptural support for Augustine’s assertion. St Paul in his mission to the Greeks famously instructed the Athenians (in Acts 17.23) declaring, “for as I was passing through and considering the objects of your worship, I even found an altar with this inscription: “To the unknown god.” Therefore, the One whom you worship without knowing, Him I proclaim to you.” I very clearly recall encountering a meme some time ago citing C. S. Lewis’ *The Lion, the Witch, and the Wardrobe* which captured the above sentiment perfectly. C. S. Lewis wrote something to the effect of (trying to recall in my own words): > “You worship another deity but it is the Christian God in disguise.” Or: > “We worship the same God, just a different name.” My question for all of you: Is any one familiar enough with C. S. Lewis’ material (fiction or even non-fiction) to find an actual reference to this quote by C. S. Lewis that I am trying to describe? I’ve spent hours combing through Google search terms trying to find this quote / meme by C.S.Lewis. No dice.