Now, I'm as appreciative as the next obsessive-compulsive recovering-academic of the vast riches of material becoming available online, thanks to all those Google scanners crouched in the basements of libraries around the world, madly feeding books through their machines. I download obscure tomes onto my iPad and give thanks to the dual gods Gates and Jobs, singing hymns to all the lesser pantheon of geniuses. But there's nothing like a book.

My God...it can think.

Do not neglect to bring your revolver, Russell. It may be needed, and it does us no good in your drawer with that disgusting cheese." "My lovely Stilton; it's almost ripe, too. I do hope Mr. Thomas enjoys it." "Any riper and it will eat through the woodwork and drop into the room below." "You envy me my educated tastes." "That I will not honour with a response. Get out the door, Russell.

When you're putting together a story, sometimes you just have to skip over the boring bits.

I became, in other words, more like Holmes than the man himself: brilliant, driven to a point of obsession, careless of myself, mindless of others, but without the passion and the deep-down, inbred love for the good in humanity that was the basis of his entire career. He loved the humanity that could not understand or fully accept him; I, in the midst of the same human race, became a thinking machine.

Tell me about yourself, Miss Russel." I started to give him the obligatory response, first the demurral and then the reluctant flat autobiography, but some slight air of polite inattention in his manner stopped me. Instead, I found myself grinning at him. "Why don't you tell me about myself, Mr. Holmes?

What does it mean, to lose one's mind? Where does it go? If a man is out of his mind, where is he? What is insane when the world is mad by contrast?