Krakatit by Karel Čapek

He started out of his sleep covered with a terrible sweat. Where -- where was he? The ceiling undulated and swung to and fro above him; no, no, no, it was falling, descending with a screw-like motion, slowly coming down like a gigantic hydraulic press. Prokop wanted to shout, but was unable to do so, and now the ceiling was so low that he could distinguish a transparent fly which was resting on it, the grain of the material with which it was covered, every inequality on its surface. And still it continued to descend and Prokop watched it with breathless horror, unable to make any sound louder than a hiss. The light went out, and black darkness took its place; now it would crush him. Prokop already felt the touch of the ceiling on his hair and uttered a voiceless cry. Aha! now he had found the door, pulled it open and dashed outside. Even there there was the same darkness, or rather not darkness, but fog, fog so thick that he was unable to breathe and began to suffocate, hiccuping with horror. Now I'm being strangled, he thought, and took to flight in terror, treading upon -- upon -- some sort of living bodies, which were still writhing. He bent down and felt beneath his hands a young breast. That -- that was Annie, he thought, and passed his hand over her head; but instead of a head she had a box, a por‑ce‑lain box containing something slimy and spongy like a lung. He felt utterly revolted and tried to draw his hand away, but the thing adhered to it, attached itself and began to creep up his arm. It was Krakatit, a damp and resinous sepia with the gleaming eyes of the Princess, which were fixed on him agitatedly and passionately; the thing moved about his naked body looking for a place on which to sit down upon him. Prokop was unable to breathe, struggled with it, dug his fingers into this yielding, sticky matter -- and woke up.

Mr. Paul was bending over him and placing a cold compress on his chest.