backing away as the foam threatened to engulf him. He certainly didn't want to become part of the filling! Soon all of the space was full. He smoothed the green wall facing the main cavity and painted it in the same manner as the off-shoots.
Now he was ready for the big one. So far he had used up about eight cubic feet of colloid, but the gaping centre pit would require over thirty feet. He removed the nozzle entirely and let the tank heave itself out.
"Turn it off!" he yelled to the Enen by the pump as green foam bulged gently over the rim. One ton of supercolloid filled the tooth, and he was ready to carve it down and insert the special plastic loop in the centre.
The foam continued to pump. "I said TURN IT OFF!" he cried again. Then he remembered that he had no transcoder for Enen. They could not comprehend him.
He flipped the hose away from the filling and aimed it over the edge of the tooth. He had no way to cut off the flow himself, since he had removed the nozzle. There could not be much left in the tank.
A rivulet of green coursed down the tooth and over the pink gum tissue, travelling towards the squid-like tongue. The tentacles reached out, grasping the foam as it solidified. They soon became festooned in green.
Dillingham laughed—but not for long. There was a steam-whistle sigh followed by a violent tremor of the entire jaw. "I'm going to... sneeze," the Gleep transcoder said, sounding fuzzy. The colloid was interfering with the articulation of the tongue and triggering a reflex.
A sneeze! Suddenly Dillingham realized what that would mean to him and the Enen crew.
"Get under cover!" he shouted at the Enens below, again forgetting that they couldn't comprehend the warning. But they had already grasped the significance of the tremors, and were piling into the sub frantically.
"Hey—wait for me!" But he was too late. The air howled past with the titanic intake of breath. There was a terrible pause.
Dillingham lunged for the mound of colloid and dug his fingers into the thickening substance. "Keep your jaws apart!" he yelled at the Gleep, praying that it could still pick up the message. "KEEP THEM OPEN!"
The sound of a tornado raged out of its throat. He buried his face in green as the hurricane struck, tearing mercilessly at his body. His arms were wrenched cruelly; his fingers ripped through the infirm colloid, slipping...
The wind died, leaving him grasping at the edge of the tooth. He had survived it! The jaws had not closed.
He looked up. The upper molars hung only ten feet above, visible in the light from the charmed lamp hooked somehow to his foot.
He was past the point of reaction. "Open, please," he called in his best operative manner, willing the transcoder to be still in the vicinity. He peered over the edge.
There was no sign of the sub. The colloid tank, with its discharging hose, was also gone.
He took a walk across the neighbouring teeth, looking for whatever there was to see. He was appalled at the amount of decalcification and outright decay in evidence. This Gleep child would shortly be in pain again, unless substantial restorative work were done immediately.
But in a shallow cavity—one barely a foot deep—he found the transcoder, undamaged. "It's an ill decalcification that bodes nobody good," he murmured, retrieving it.
The amphibious sub reappeared and disgorged somewhat shaken passengers. Dillingham marched back over the rutted highway and joined them. But the question still nagged at his mind: how could the caries he had observed be reconciled with the muck-a-muck's undoubtedly sincere statement that there had never been dental trouble before? What had changed?
He carved the green surface into an appropriate pattern and carefully applied his fixative. He was ready for the next step.
Now the derrick was set up and brought into play. Dillingham guided its dangling hook into the eyelet embedded in the colloid and signalled the Enen operator to lift. The chain went taut; the