And the distractions weren't limited to the city itself. I was also suddenly aware of parents with infants. They were everywhere: walking their babies in strollers, holding them in their arms, gazing at their small faces with crippling devotion. Tatsu, my sometime nemesis and current friend in the Keisatsucho, the Japanese FBI, had warned me this would be the case, and, as in so many other matters, he had been right.

What Tatsu hadn't prepared me for, what he couldn't, were the thousand other ways his news about Midori had left me ambivalent, confused, almost in shock. I had nearly canceled with Delilah, but then decided not to. I owed her an explanation, for one thing. I still wanted to see her, wanted it a lot, for another.

I never could have predicted the affection I'd developed for Delilah, or that she seemed to have developed for me. Certainly our initial encounters were inauspicious. First there was Macau, where we learned we were working the same target. Then Bangkok and Hong Kong, where she was supposed to be working me. And yet the inherent mistrust born of working for competing intelligence organizations – Delilah, for the Mossad, and I, freelance at the time for the CIA – had paradoxically provided a stable foundation. Each of us recognized in the other a professional, an operator with an agenda, someone for whom business imperatives would always trump personal desire. All of that became the basis for respect, even mutual understanding, and ultimately provided the context for the indulgence of undeniable personal chemistry. The sex couldn't lead anywhere, we both knew it. So why not enjoy what we had, whatever it was, for as long as it lasted?

But it did last, and it deepened. We spent a month together in Rio, after which Delilah had defied her paymasters when they ordered her to set me up. Defy, hell, she had very nearly betrayed them. She had warned me what was coming, and then worked with me to straighten things out. There must have been something between us, something worthwhile, if we had managed to avoid so many potentially lethal obstacles, and Barcelona was going to be the time and place to figure out what.