As they had slalomed around a few small islands along the way, they had been able to regain some lost ground by cutting straight across tidal shallows where the big boat had been obliged to swing wide. But by the time they’d hove in view of the crowded island that seemed to be their destination, the terrorists’ boat had become a nearly invisible dot, and it had required all of Csongor’s powers of concentration to maintain his focus on it and to prevent its getting lost against the background of countless other vessels.