John Howe, the illustrator who brought J. R. R. Tolkien's universe to life, is now inviting the world into his mind's eye by setting up his studio in a mediaeval prison-turned-museum in Switzerland.

If there’s anything more extraordinary than traversing Middle-earth from one end to the other, with its wonders and dangers, it’s doing it by drawing. That’s what Canadian artist John Howe has done, ...