Deception Point Page 0,56

of diatoms that thrive under Arctic ice shelves. Fourteen species of autotrophic nannoflagellates, twenty heterotrophic flagellates, forty heterotrophic dinoflagellates, and several metazoans, including polychaetes, amphipods, copepods, euphausids, and fish. Any questions?"

Tolland frowned. "Clearly you know more about Arctic fauna than I do, and you agree there's plenty of life underneath us. So why are you so skeptical that we saw bioluminescent plankton?"

"Because, Mike, this shaft is sealed. It's a closed, freshwater environment. No ocean plankton could possibly get in here!"

"I tasted salt in the water," Tolland insisted. "Very faint, but present. Saltwater is getting in here somehow."

"Right," Norah said skeptically. "You tasted salt. You licked the sleeve of an old sweaty parka, and now you've decided that the PODS density scans and fifteen separate core samples are inaccurate."

Tolland held out the wet sleeve of his parka as proof.

"Mike, I'm not licking your damn jacket." She looked into the hole. "Might I ask why droves of alleged plankton decided to swim into this alleged crack?"

"Heat?" Tolland ventured. "A lot of sea creatures are attracted by heat. When we extracted the meteorite, we heated it. The plankton may have been drawn instinctively toward the temporarily warmer environment in the shaft."

Corky nodded. "Sounds logical."

"Logical?" Norah rolled her eyes. "You know, for a prize-winning physicist and a world-famous oceanographer, you're a couple of pretty dense specimens. Has it occurred to you that even if there is a crack-which I can assure you there is not-it is physically impossible for any sea-water to be flowing into this shaft." She stared at both of them with pathetic disdain.

"But, Norah...," Corky began.

"Gentlemen! We're standing above sea level here." She stamped her foot on the ice. "Hello? This ice sheet rises a hundred feet above the sea. You might recall the big cliff at the end of this shelf? We're higher than the ocean. If there were a fissure into this shaft, the water would be flowing out of this shaft, not into it. It's called gravity."

Tolland and Corky looked at each other.

"Shit," Corky said. "I didn't think of that."

Norah pointed into the water-filled shaft. "You may also have noticed that the water level isn't changing?"

Tolland felt like an idiot. Norah was absolutely right. If there had been a crack, the water would be flowing out, not in. Tolland stood in silence a long moment, wondering what to do next.

"Okay." Tolland sighed. "Apparently, the fissure theory makes no sense. But we saw bioluminescence in the water. The only conclusion is that this is not a closed environment after all. I realize much of your icedating data is built on the premise that the glacier is a solid block, but-"

"Premise?" Norah was obviously getting agitated. "Remember, this was not just my data, Mike. NASA made the same findings. We all confirmed this glacier is solid. No cracks."

Tolland glanced across the dome toward the crowd gathered around the press conference area. "Whatever is going on, I think, in good faith, we need to inform the administrator and-"

"This is bullshit!" Norah hissed. "I'm telling you this glacial matrix is pristine. I'm not about to have my core data questioned by a salt lick and some absurd hallucinations." She stormed over to a nearby supply area and began collecting some tools. "I'll take a proper water sample, and show you this water contains no saltwater plankton-living or dead!"

Rachel and the others looked on as Norah used a sterile pipette on a string to harvest a water sample from the melt pool. Norah placed several drops in a tiny device that resembled a miniature telescope. Then she peered through the oculus, pointing the device toward the light emanating from the other side of the dome. Within seconds she was cursing.

"Jesus Christ!" Norah shook the device and looked again. "Damn it! Something's got to be wrong with this refractometer!"

"Saltwater?" Corky gloated.

Norah frowned. "Partial. It's registering three percent brine-which is totally impossible. This glacier is a snow pack. Pure freshwater. There should be no salt." Norah carried the sample to a nearby microscope and examined it. She groaned.

"Plankton?" Tolland asked.

"G. polyhedra," she replied, her voice now sedate. "It's one of the planktons we glaciologists commonly see in the oceans under ice shelves." She glanced over at Tolland. "They're dead now. Obviously they didn't survive long in a three percent saltwater environment."

The four of them stood in silence a moment beside the deep shaft.

Rachel wondered what the ramifications of this paradox were for the overall discovery. The dilemma appeared minor when compared to the overall scope