When I was a child, books were everything. And so there is in me, always, a nostalgic, yearning for the lost pleasure of books. It is not a yearning that one ever expects to be fulfilled.

There is something about words. In expert hands, manipulated deftly, they take you prisoner. Wind themselves around your limbs like spider silk, and when you are so enthralled you cannot move, they pierce your skin, enter your blood, numb your thoughts. Inside you they work their magic.

Still in my coat and hat, I sank onto the stair to read the letter. (I never read without making sure I am in a secure position. I have been like this ever since the age of seven when, sitting on a high wall and reading The Water Babies, I was so seduced by the descriptions of underwater life that I unconsciously relaxed my muscles. Instead of being held buoyant by the water that so vividly surrounded me in my mind, I plummeted to the ground and knocked myself out. I can still feel the scar under my fringe now. Reading can be dangerous.)

Do they sense it, these dead writers, when their books are read? Does a pinprick of light appear in their darkness? Is their soul stirred by the feather touch of another mind reading theirs? I do hope so.

All morning I struggled with the sensation of stray wisps of one world seeping through the cracks of another. Do you know the feeling when you start reading a new book before the membrane of the last one has had time to close behind you? You leave the previous book with ideas and themes -- characters even -- caught in the fibers of your clothes, and when you open the new book, they are still with you.

For it must be very lonely being dead.

Prescription: 'Sir Arthur Conan Doyle, The Case Book of Sherlock Holmes. Take ten pages, twice a day, til end of course.