Ish nodded. "Call it that." "But what, for Pete's sake? What is this crazy specialty that blinds you to all the fine things that man has done?" Ish took a swallow of his beer. "Well, now, if I was a poet, I'd say it was the finest thing that man has ever done." The advisor's lips twisted in derision. "That's pretty fanatical, isn't it?" "Uh-huh." Ish waved to the bartender for refills. THE NAVION took a boiling thermal under its right wing and bucked upward suddenly, tilting at the same time, so that the pretty brunette girl in the other half of the side-by-side was thrown against him. Ish laughed, a sound that came out of his throat as turbulently as that sudden gust of heated air had shot up out of the Everglades, and corrected with a tilt of the wheel. "Relax, Nan," he said, his words colored by the lingering laughter. "It's only air; nasty old air." The girl patted her short hair back into place. "I wish you wouldn't fly this low," she said, half-frightened. "Low? Call this low?" Ish teased. "Here. Let's drop it a little, and you'll really get an idea of how fast we're going." He nudged the wheel forward, and the Navion dipped its nose in a shallow dive, flattening out thirty feet above the mangrove. The swamp howled with the chug of the dancing pistons and the claw of the propeller at the protesting air, and, from the cockpit, the Everglades resolved into a dirty-green blur that rocketed backward into the slipstream. "Marty!" Ish chuckled again. He couldn't have held the ship down much longer, anyway. He tugged back on the wheel suddenly, targeting a cumulous bank with his spinner. His lips peeled back from his teeth, and his jaw set. The Navion went up at the clouds, her engine turning over as fast as it could, her wings cushioned on the rising thrust of another thermal. And, suddenly, it was as if there were no girl beside him, to be teased, and no air to rock the wings—there were no wings. His face lost all expression. Faint beads of sweat broke out above his eyes and under his nose. "Up," he grunted through his clenched teeth. His fists locked on the wheel. "Up!" The Navion broke through the cloud, kept going. "Up." If he listened closely,