Lewis Carroll was a pedophile.

He took exquisite, melancholy photographs of little girls. He befriended little girls on trains, and beaches, and in the houses of friends. And one particular little girl, Alice Liddell, came to be his muse and great passion.

He wrote to one 10-year-old girl, "Extra thanks and kisses for the lock of hair. I have kissed it several times - for want of having you to kiss, you know, even hair is better than nothing."

He wrote to Gertrude Thomson, an artist who was sketching girlish fairies and nymphs, "I confess I do not admire naked boys in pictures. They always seem... to need clothes, whereas one hardly sees why the lovely forms of girls should ever be covered up."