Kim was at his brother's house in Bradford. They were standing facing each other in the sitting room next to the family shrine. Both their faces were contorted with anger.

"I can't go. I have two vital experiments going on and I am the only one there to supervise. I'm not a student any more, Jamil. I'm an important man. I am in charge of important work. I cannot just leave the country."

He turned his back on his brother and stamped across to the other side of the ...