C.S. Lewis' Mere Christianity has been read by millions of people over the last six decades. Not surprisingly, it is most popular with Christians who see it as demonstrating the reasonableness of Christianity. However, if we follow the advice of philosophy and objectively apply our innate God-given reason to the arguments Lewis puts forward for Christianity, we soon see they are painfully lacking. No matter how hard Lewis attempts to unite innate God-given reason and Christianity, he fails. An Answer to C.S. Lewis' Mere Christianity helps the reader to realize not only the absurdity of Lewis'...