After the Gradual, the reader reads the Epistle with hands joined palm to palm. Following the Epistle, he again pauses, lifts his eyes and says, The word of the Lord, whereupon the congregation will respond, Amen. Then he closes the book from the back (right) binding, so that when closed, the book is face down. He then steps aside to allow the attendant to carry the book to its place for the reading of the Gospel.
Piepkorn rightly declares that "you have no authority to substitute another Epistle for the one prescribed."