There looks like a trail down the inside of the crevice, but the Sun"s setting, so we"re waiting till tomorrow to go down.
Going down was Jones" idea, not mine.
_June 22, 1961_
Well, we"re at the bottom, and there"s water here, a shallow stream about thirty feet wide that runs along the center of the ca.n.a.l (we"ve decided we"re in a ca.n.a.l). No sign of Pat or Kroger yet, but the sand here is hard-packed and damp, and there are normal-size footprints mingled with the alien ones, sharp and clear. The aliens seem to have six or seven toes. It varies from print to print. And they"re barefoot, too, or else they have the d.a.m.nedest-looking shoes in creation.
The constant shower of sand near the cliff walls is annoying, but it"s sandless (shower-wise) near the stream, so we"re following the footprints along the bank. Also, the air"s better down here. Still thin, but not so bad as on the surface. We"re going without masks to save oxygen for the return trip (Jones a.s.sures me there"ll _be_ a return trip), and the air"s only a little bit sandy, but handkerchiefs over nose and mouth solve this.
We look like desperadoes, what with the rifles and covered faces. I said as much to Lloyd and he told me to shut up. Moss all over the cliff walls. Swell luck for Kroger.
We"ve found Kroger and Pat, with the help of the aliens. Or maybe I should call them the Martians. Either way, it"s better than what Jones calls them.
They took away our rifles and brought us right to Kroger and Pat, without our even asking. Jones is mad at the way they got the rifles so easily. When we came upon them (a group of maybe ten, huddling behind a boulder in ambush), he fired, but the shots either bounced off their scales or stuck in their thick hides. Anyway, they took the rifles away and threw them into the stream, and picked us all up and took us into a hole in the cliff wall. The hole went on practically forever, but it didn"t get dark. Kroger tells me that there are phosph.o.r.escent bacteria living in the mold on the walls. The air has a fresh-dug-grave smell, but it"s richer in oxygen than even at the stream.
We"re in a small cave that is just off a bigger cave where lots of tunnels come together. I can"t remember which one we came in through, and neither can anyone else. Jones asked me what the h.e.l.l I kept writing in the diary for, did I want to make it a gift to Martian archeologists?
But I said where there"s life there"s hope, and now he won"t talk to me.
I congratulated Kroger on the lichen I"d seen, but he just said a short and unscientific word and went to sleep.
There"s a Martian guarding the entrance to our cave. I don"t know what they intend to do with us. Feed us, I hope. So far, they"ve just left us here, and we"re out of rations.
Kroger tried talking to the guard once, but he (or it) made a whistling kind of sound and flashed a mouthful of teeth. Kroger says the teeth are in multiple rows, like a tiger shark"s. I"d rather he hadn"t told me.
_June 23, 1961, I think_
We"re either in a docket or a zoo. I can"t tell which. There"s a rather square platform surrounded on all four sides by running water, maybe twenty feet across, and we"re on it. Martians keep coming to the far edge of the water and looking at us and whistling at each other. A little Martian came near the edge of the water and a larger Martian whistled like crazy and dragged it away.
"Water must be dangerous to them," said Kroger.
"We shoulda brought water pistols," Jones muttered.
Pat said maybe we can swim to safety. Kroger told Pat he was crazy, that the little island we"re on here underground is bordered by a fast river that goes into the planet. We"d end up drowned in some grotto in the heart of the planet, says Kroger.
"What the h.e.l.l," says Pat, "it"s better than starving."
It is not.
_June 24, 1961, probably_
I"m hungry. So is everybody else. Right now I could eat a dinner raw, in a centrifuge, and keep it down. A Martian threw a stone at Jones today, and Jones threw one back at him and broke off a couple of scales. The Martian whistled furiously and went away. When the crowd thinned out, same as it did yesterday (must be some sort of sleeping cycle here), Kroger talked Lloyd into swimming across the river and getting the red scales. Lloyd started at the upstream part of the current, and was about a hundred yards below this underground island before he made the far side. Sure is a swift current.
But he got the scales, walked very far upstream of us, and swam back with them. The stream sides are steep, like in a fjord, and we had to lift him out of the swirling cold water, with the scales gripped in his fist. Or what was left of the scales. They had melted down in the water and left his hand all sticky.
Kroger took the gummy things, studied them in the uncertain light, then tasted them and grinned.
The Martians are made of sugar.
Later, same day. Kroger said that the Martian metabolism must be like Terran (Earth-type) metabolism, only with no pancreas to make insulin.
They store their energy on the _outside_ of their bodies, in the form of scales. He"s watched them more closely and seen that they have long rubbery tubes for tongues, and that they now and then suck up water from the stream while they"re watching us, being careful not to get their lips (all sugar, of course) wet. He guesses that their "blood" must be almost pure water, and that it washes away (from the inside, of course) the sugar they need for energy.
I asked him where the sugar came from, and he said probably their bodies isolated carbon from something (he thought it might be the moss) and combined it with the hydrogen and oxygen in the water (even _I_ knew the formula for water) to make sugar, a common carbohydrate.
Like plants, on Earth, he said. Except, instead of using special cells on leaves to form carbohydrates with the help of sunpower, as Earth plants do in photosynthesis (Kroger spelled that word for me), they used the _shape_ of the scales like prisms, to isolate the spectra (another Kroger word) necessary to form the sugar.
"I don"t get it," I said politely, when he"d finished his spiel.
"Simple," he said, as though he were addressing me by name. "They have a twofold reason to fear water. One: by complete solvency in that medium, they lose all energy and die. Two: even partial sprinkling alters the shape of the scales, and they are unable to use sunpower to form more sugar, and still die, if a bit slower."
"Oh," I said, taking it down verbatim. "So now what do we do?"
"We remove our boots," said Kroger, sitting on the ground and doing so, "and then we cross this stream, fill the boots with water, and _spray_ our way to freedom."
"Which tunnel do we take?" asked Pat, his eyes aglow at the thought of escape.
Kroger shrugged. "We"ll have to chance taking any that seem to slope upward. In any event, we can always follow it back and start again."
"I dunno," said Jones. "Remember those _teeth_ of theirs. They must be for biting something more substantial than moss, Kroger."
"We"ll risk it," said Pat. "It"s better to go down fighting than to die of starvation."
The h.e.l.l it is.
_June 24, 1961, for sure_
The Martians have coal mines. _That"s_ what they use those teeth for. We pa.s.sed through one and surprised a lot of them chewing gritty hunks of anthracite out of the walls. They came running at us, whistling with those tubelike tongues, and drooling dry coal dust, but Pat swung one of his boots in an arc that splashed all over the ground in front of them, and they turned tail (literally) and clattered off down another tunnel, sounding like a locomotive whistle gone berserk.
We made the surface in another hour, back in the ca.n.a.l, and were lucky enough to find our own trail to follow toward the place above which the jeep still waited.
Jones got the rifles out of the stream (the Martians had probably thought they were beyond recovery there) and we found the jeep. It was nearly buried in sand, but we got it cleaned off and running, and got back to the ship quickly. First thing we did on arriving was to break out the stores and have a celebration feast just outside the door of the ship.
It was pork again, and I got sick.
_June 25, 1961_