"Right, love. We had better save our breath for what comes, for by any calculation there are a hundred leagues and more between us and the City Out of Mind."
The next day they encountered their first slug. It was by no means a giant among its kind, only about six feet thick, and it wasn't the variety that expectorated its poisonous saliva, either. The thing was basking in the streamlet that flowed along the pipe. It had sensed their coming, however, probably by picking up vibrations borne by the water. As they came close it surged suddenly, sliding forward on its slimy track, feelers waving and a sharp-tipped tube outthrust.
Gord, in the lead at the moment, was nearly taken by the unexpected lunge made by the seemingly slow and senseless monster. Instinctively, he jumped back and batted with his left hand, the one holding his dagger, for the barbed tube was coming at that side of his body. Even though the slug's hide was tough, the keen-edged blade sliced the stabbing member cleanly off, and a jet of vile-smelling stuff shot forth as the severed tip fell away. The liquid hit Gord's leg, and the pain was so intense that he screamed refiexively. Then his nerves shut off, and he remembered no more, until…
"How are you now, love?"
Leda's dark and lovely face swam into view before his eyes. Then Gord recalled what had happened. "My leg is still a little tender," he answered after a little thought and a flexing of his limbs, "but otherwise that stuff it squirted on me seems to be pretty harmless – other than the searing pain it causes."
"Searing is right," Leda said with a shake of her platinum tresses. That thing's poison seared you almost to death, and that's the truth. I had to use a spell to detoxify you, then heal you after. You've been unconscious for half a day!"
As soon as he felt strong enough, Gord pulled the dark elf to him. Despite the conditions, they found kissing and making love was as healing and restoring as any magic. "Now, my dear drow queen," he said to her, "we are even. I have saved your life, and you mine. Whatever occurs from now on is on a clean slate, as the scholars are wont to say."
When they went on, both were more alert for danger. It was a good thing, too. The farther they proceeded along the conduit line, the more dangerous were the things they encountered. A tannish agglomeration was seen, a pudding of awful sort that scavenged and hunted as well. There were several sorts of amoeboid creatures, slimy bundles or ribbons that lurked in the water or on the curved ceiling. There were more slugs of various sorts, too. Only some of these latter monsters were unavoidable, since they lurked directly in Gord's and Leda's path and, as Gord had found out the hard way, they were capable of quick, rapid movements over a short distance. They took care of all the small slugs they could not go around – but then, as they rounded a bend in the tunnel, they came upon a monstrous one that nearly filled the entire tunnel with its bulk, and it was crawling toward them.
"What do we do now?" Gord asked as they retreated from the advancing horror. "That mindless blob will probably pursue us all the way back to where we entered this tube."
Gord might be helpless in this situation, but Leda was not. "Hit it with your sling stones if you can," she said. "Try to make it stop, or at least come on more slowly. I'll go back and bring up something that even this thing will not like."
Gord waited for a few minutes while the thing moved inexorably forward. Then, when he thought the slug might be in range of his weapon, he tried his best. Unfortunately, because of the height of the tunnel, he had to send the stone on a flat trajectory, and it did not travel as far as he had wanted. It hit the creature on the bounce and did not hurt it, but evoked a glob of spittle from the slug. The shot of liquid fell short, just as his stone had, but Gord got the message. If he was able to send stones to strike the creature with any effect, the slug would be in range to retaliate with its juices, and one dose of that stuff could kill him. He loaded and spun his sling a second time, loosed one more heavy stone just for the sake of doing so, and then ran back to where Leda was standing just as she finished making a series of passes in the air.
"I love your legs in that modishly short robe you're wearing, Gord!"
"Not very funny, Leda," he snapped. His burnous had been eaten away by the first stinging slug's poison, so she had cut it off to make a tuniclike garment. "That son of a bitch is coming, you know."
"Not for long he isn't. I managed to work up what is needed. Let's watch."
The gigantic slug moved along toward them for another minute or so. Then suddenly it stopped, its feelers waving wildly, and its bloated, grayish form began to heave and writhe. A strange piping sound came from the monster, a sound Gord had never heard from any of the slugs they had avoided or killed prior to this encounter.
"Look at that bag of slime now, dearest one. See how the visitors I have called get its attention?"
"What is happening?"
"I have summoned insects to attack that thing. Even down here there are many to answer the calling I sent forth, and arachnids will obey too, sometimes. It will take a time – we had better get back from here now. Eventually the little ones will do their work, and the bites and stings will finish the slug. The beetles and bugs will feast on that slime-coated flesh, and we will go on thereafter."
Gord shuddered at the thought. Even a ghastly thing like that deserved a cleaner death. Still, when it came down to it, it was a matter of their death or the slug's. Leda was more practical than he, no two ways about it. "You have saved us, girl," he said with calm admiration. "Nice work… but couldn't you have managed it some other way?"
Leda shrugged. "I don't think so, but what's the difference? The swarm of insects came to me, and the summoning has worked. We will go on, and the matter is closed. Do you really concern yourself with that slug?"
"Stupid of me, isn't it?" he replied with a tone of self-disgust. "That bastard would suck me up for lunch without thought, but it is a nasty way to die, that," he said, turning away from the thrashing thing and walking back a short distance with Leda to wait for the insects to finish their work.
After a time they proceeded forward again, stepping gingerly around the area where the bugs were still feasting on the slug's remains. "One thing is apparent now," Gord mused as they walked. "The number of life forms we have encountered lately spells it out clearly for us."
"What's that?"
"Somewhere pretty close ahead is a place where this tunnel gives way to the desert above. All these monsters and other things don't come from inside this aqueduct."
A few minutes later, Leda spoke. "You were right, Gord. There it is ahead, see?" She pointed to a wall of rock and soil about a hundred or so feet farther on up the tunnel, in front of which was a sliver of light that leaked down from the surface above. "Another barrier," she added with disgust as they approached the site.
"It would have been handy to take this tube all the way to our target, and it did seem to be heading southwest, too. Maybe there's a way past this blockage like there was before," said Gord hopefully.
A minor earthquake must have caused the collapse of the tunnel. The fall had totally blocked passage along the aqueduct, although a trickle of water issued from the broken stones and fell to the floor of the corridor. However, Gord and Leda found that they were not without alternatives. There were several dark openings in the sides and floor of the aqueduct at this point. All they needed to do was choose one of the several tunnels they could fit into.
"Now we venture into more interesting places," Leda said to the young adventurer. "This kind of thing makes me feel right at home."