The main reason J wasn't retired was the man who'd just entered the building. His name was Richard Blade. J had picked him as a promising candidate for the secret intelligence agency MI6A when Blade was fresh out of Oxford. He'd more than fulfilled that promise.

Then Lord Leighton conceived the experiment of linking an advanced computer with a human brain Blade's, to be precise. He hoped to create a superior combination of human and electronic intelligence, by having the computer generate a field matching Blade's brain waves. The actual result was Blade's being hurled off into a parallel world. Leighton christened it Dimension X after Blade got back.

Giving the mystery world a name didn't make it any the less mysterious. It didn't help, either, that Blade turned out to be the only man in the free world who could make the journey. Others returned insane or not at all. Millions of pounds and dozens of Lord Leighton's experiments later, this was still true. Meanwhile, J had a busy time defending Project Dimension X from enemy agents, accidents, and sheer human stupidity. He had almost as busy a time defending Richard Blade from Leighton's wilder experiments.

To J, Blade was more than a friend or a trusted subordinate. He was the son the aging bachelor spymaster would never have. To Leighton, Blade was hardly more than an experimental guinea pig.

Or at least he had been once. That was before Leighton's experiment with the new KALI computer let an immaterial but deadly monster from another Dimension loose on the world. Blade eventually defeated the Ngaa, and Leighton seemed to have learned his lesson. At least he hadn't sprung either of his latest ideas on J and Blade at the last minute, the way he used to.