He always took the early, slow train from Oxford, so he could say his prayers and enjoy the scenery before he arrived at the tiny station at the foot of the Malvern Hills.

C.S. Lewis rarely tinkered with the details of these trips, since the goal was always the same -- to walk and talk with friends. He wore a rumpled tweed jacket with the obligatory leather elbow patches, baggy wool pants, walking shoes and an old hat. He had a battered rucksack and he never carried a watch.

His host was George Sayer, his former pupil at Magdalen College and a close friend for three decades. They usually walked the 10-mile Malvern ridge, with its lovely views of the distant Welsh hills, the Severn valley and the Cotswolds. But sometimes they strayed elsewhere, joined by other colleagues.

"Beauty was so important to Jack and so was good conversation," said Sayer, using the nickname Lewis preferred. "What could be better than putting the two together? One could not have found a better walking companion."

Sayer gazed out the sunny garden window in his sitting room, which served as the starting point for their travels. Then he laughed out loud.

"You should have seen Jack trying to walk with J.R.R. Tolkien! Once Jack got started a bomb could not have stopped him and the more he walked, the more energy he had for a good argument," said Sayer. "Now Tolkien was just the opposite. If he had something to say, he wanted you to stop so he could look you in the face. So on they would go, Jack charging ahead and Tolkien pulling at him, trying to get him to stop - back and forth, back and forth. What a scene!"

That was long ago. It has been nearly a quarter of a century since Sayer led Malvern College's English department and a decade since he wrote "Jack: C.S. Lewis and His Times."