Anna mocked herself for feeling like a woman in a tumbrel, jouncing through her last glorious moments toward the guillotine and the vast unknown. Still, she rather wished the day had closed without this final hurrah of heavenly fireworks. A sunless world would have been that much easier to leave behind.

After too short a ride, the pickup pulled off the rutted dirt road into a wilderness parking lot incongruously marked off with concrete curbs. Anna'd been too engrossed in morbid imaginings to recollect the twists and turns they'd made through the wrinkled landscape, but she guessed they were only three or four miles from the headquarters buildings. The discovery of Lechuguilla in the backyard had put Carlsbad Caverns National Park in the odd position of having doubled in size overnight. Oscar had likened the experience to "finding Yellowstone in your basement."

Holden Tillman opened the tailgate, and the three of them divided up the gear. As they started the hike to the mouth of Lechuguilla, Oscar filled Anna in on the team briefing. Holden Tillman was officially titled Underground Rescue Coordinator. He was in charge of all activities subterranean. The NPS had borrowed him from the local Bureau of Land Management office because of his expertise in caves and cave rescues. Oscar assured Anna he was, in caving circles, known as the Holden Tillman.

A quiet person with an aw-shucks drawl, Tillman seemed half embarrassed and half amused by Oscar's effusions. "Oscar's going to write my eulogy," he told Anna, a slow smile blooming beneath a brown brush of mustache. "He just wants to get some practicing in before I'm dead."

Anna liked Holden right off. She hoped nothing happened to change that. Experience taught her, her first impression of people was dead wrong as often as not. This time she had a gut feeling it wasn't. Tillman was of an age with Iverson-in his forties-but there the resemblance ended. He was a small man, maybe five-foot-eight and a hundred thirty pounds with skin that looked shrunk to fit a wiry, muscled frame.